Analyses of lignites and associated rocks from the Fort Union region, North Dakota and Montana

Tewalt, Susan J. stewalt@usgs.gov, Hildebrand, Ricky T., Finkelman, Robert B. · 1989 · Report

Analyses of lignites and associated rocks from the Fort Union region, North Dakota and Montana by Tewalt, Susan J. stewalt@usgs.gov, Hildebrand, Ricky T.,…

Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.

UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY ANALYSES OF LIGNITES AND ASSOCIATED ROCKS FROM THE FORT UNION REGION, NORTH DAKOTA AND MONTANA by S.J. Tewalt, R.T. Hildebrand, R.B. Finkelman Open-File Report 89-285 This report is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey standards.

ABSTRACT Chemical and geologic data are presented for 383 lignite and rock samples collected from the Fort Union Region in North Dakota and Montana. Chemical data include sample locations, sampling methods, stratigraphic information, air-drying loss, proximate and ultimate analyses, heat content, forms of sulfur, ash deformation temperatures, free-swelling index, and major-, minor-, and trace-element concentrations. Within the region, moisture contents range from 20 to 57 and average 38.8 per cent. Mean ash yield is about 9 per cent but ranges from 4 to 31 per cent. Heat content averages 6290 Btu/lb (3497 Kcal/kg) over the region. Concentrations of trace elements of environmental concern are generally low. Average concentrations of arsenic and uranium are less than 6 ppm. Mean values of selenium and cadium are less than 1 ppm. Sodium and barium are two elements that can occur in high concentrations (mean values of 2200 and ppm, respectively) in these lignites. INTRODUCTION Regional Setting The Fort Union Region is in the Northern Great Plains Coal Province and covers parts of four States and three Canadian Provinces. Coals in this region are lignite in rank and Paleocene in age. Comparative stratigraphy and nomenclature within the region are indicated in figure 1. In North Dakota, the Fort Union Formation is classified as a group by the North Dakota Geological Survey. Eastern Montana Western N. Dakota Central N. Dakota Tertiary Paleocene /VWVVVW Tongue River Hbr Union Fm Lebo Hbr Tullock Mbr Fort Union Gp Sentinel Butte Fm Bullion Creek Fm Slope Fm / Cannonball Ludlow Fm Fm Sentinel Butte Fm j Bullion Creek Fm

Cannonba 1 1 Fm Figure 1. Comparative stratigraphy and nomenclature for the Fort Union Region (after Daly and others, 1985). National Coal Resources Data System The National Coal Resources Data System contains information on the stratigraphic occurrence and the chemical and physical characteristics of coals. The USCHEM database includes proximate and ultimate analyses, major-, minor-, and trace-element concentrations, forms-of-sulfur analyses, ash fusion temperatures, heat content, air-drying loss, and free swelling indices. Analyses of 383 lignite samples and 22 rock samples from North Dakota and Montana compose the available USCHEM database for the Fort Union Region. Collecting localities for these samples are shown in Figure 2.

N SAMPLE LOCALITY 60 km , 40 mi figure 2. Collecting localities for USCHETM lignite samples in the Fort Union region North Dakota and Montana.

SCOPE The purpose of this report is to present available chemical data for lignites from the Fort Union region. No interpretations of the geological or technical significance of these data are attempted. Statistical summaries, contour mapping of some variables, and further discussion of the data will be presented in Tewalt and others, (in press). Some data have been presented in other U.S. Geological Survey (USGS) open-file reports. These reports include: Swanson and others (1976,) USGS and others (1976,1977), Hatch and Affolter (1978), Affolter and Hatch (1980), and Affolter and Kirschbaum (1982). METHODS Most of the coal samples were collected and prepared according to procedures outlined in Swanson and Huffman (1976). Proximate and ultimate analyses have been done according to standard methods (ASTM, 1981) by several laboratories, including the U. S. Bureau of Mines, a commercial laboratory, and the Montana Bureau of Mines and Geology. Analyses performed at the U.S. Geological Survey use several analytical methods including wet chemical analysis, atomic absorption spectroscopy, X-ray fluorescence spectroscopy, and instrumental neutron activation analysis. Analytical methods have been modified through time, although the current analytical scheme is illustrated in Figure PRESENTATION OF DATA Available data for lignites and non-coal material in the Fort Union Region are presented separately . Tables la through If contain the information for lignite samples. Location, geologic, and other sample information are presented in Tables la through Ic, respectively. Proximate and ultimate analyses, forms-of-sulfur, heat content, air-drying loss, free-swelling index, and ash fusion temperatures are in Table Id. The U.S. Geological Survey makes no claims as to the accuracy of apparent rank calculated from parameters listed in Table Id. Table le contains major oxides on an ash basis. Major-, minor-, and trace-element analyses on a whole-coal basis are presented in Table If. Tables 2a through 2e present the data for non-coal samples; excluding, however, the table with ultimate and proximate analyses. Tables and are statistical summaries of selected chemical parameters (from Tables Id and If) for Fort Union lignites. Analytical results from partial bed samples were combined to one value by weight-averaging the data based on sample thicknesses listed in Table Ic. Therefore, statistics presented in Tables 3 and 4 represent the range in quality parameters for lignite beds, rather than individual samples.

Raw coal as received (about 7 kg broken to 0.3 cm) About 600 g of coal split out for standard coal analysis crushed to -20 mesh Remaining coal air dried (following procedures conducted at USGS as described in Golightly and Simon, 1989) Ultimate and proximate analyses (following ASTM designations, shown at each procedure) Ultimate analysis (D-3176) Sample crushed to -60 mesh and then ground in vertical Braun pulverizer using ceramic plates set to pass 100 mesh Proximate analysis (D-3172) Percent moisture, volatile matter, fixed carbon, and ash Ground coal (25 to 75 g) ashed at 525°C and percent ash calculated Apparent specific gravity (D-167, modified) Wet chemical analysis (atomic absorption) Cd Cu Mg Mn Na Pb Zn Fusibility of ash (D-1875) Wet chemical analysis Kg (flameless atomic absorption) F (specific ion electrode) X-ray fluorescence P Six-step optical emission spectrographic analysis. The following 32 elements are reported when found Ag Au B Ba Be Bi Dy Er Ga Gd Ge Ho In Ir Mo Nb Nd Ni Os Pd Pr Pt Re Rh Ru Sn Sr Tl Tm Y Zr X-ray fluorescence analysis A1 2°3 CaO Fe2°3 K20 Si02 S03 Neutron activation As Br Ce Co Cr Cs Eu Hf La Lu Rb Sb Sc Se Sm Ta Tb Th U W Yb Figure 3. Flow diagram of procedures used for the analysis of coal samples. Methods standardized by American Society for Testing and Materials, ASTM.

Table la. Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. NDE no data entered. SAMPLE NUMBER D 165564 D165565 D 165568 D165569 D 165572 D165573 D 165574 D 165575 D 165576 D165577 D 165578 D 165579 D 165605 D 165606 D 165607 D 165608 D 165609 D165610 D 165975 D 165979 D 165981 D 165982 D 165985 D 165987 STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA COUNTY MERCER MERCER MERCER MERCER OLIVER OLIVER OLIVER OLIVER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER WARD WARD WARD WARD WARD WARD WARD WARD WARD BURKE BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN BOWMAN QUADRANGLE STANTON SE (7. STANTON SE (7. STANTON SE (7. STANTON SE (7. CENTER (7.5 1 ) CENTER (7.5 1 ) CENTER (7. 5') CENTER (7.5 1 ) MEDICINE BUTTE MEDICINE BUTTE MEDICINE BUTTE MEDICINE BUTTE BEULAH (7.5') BEULAH (7.5 ') BEULAH (7.5 1 ) BEULAH (7.5') VELVA (7.5') VELVA (7.5 ') VELVA (7.5 ') VELVA (7.5') VELVA (7.5') VELVA (7.5') VELVA (7.5') VELVA (7.5 ') VELVA (7.5') VELVA (7.5') SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. SCRANTON NE (7. 5') 5') 5') 5') NE (7.5') NE (7.5') NE (7.5') NE (7.5') 5') 5') 5') 5') 5') 5') 5') 5') 5') 5') LATITUDE 471600N 471601 N 471602N 471603N 470300N 470300N 470301 N 470301 N 470830N 470830N 470830N 470830N 471510N 471510N 471505N 471505N 475230N 475230N 475230N 47523 1N 47523 1N 47523 1N 475232N 475232N 475232N 484500N 461100N 461101N 461102N 461100N 461050N 461051N 461051N 461051N 461050N 461050N 461050N 461049N 461051N 461 05 IN LONGITUDE LOCATION NAME 1011600W 1011600W 1011600W 1011600W 1011510W 1011510W 1011510W 1011510W 1014501W 1014502W 1014503W 1014504W 1014510W 1014510W 1014510W 1014510W 1005730W 1005730W 1005730W 1005731W 1005731W 1005731W 1005732W 1005732W 1005732W 1025230W 1030200W 1030201W 1030201W 1030201W 1030202W 1030202W 1030201W 1030200W 1030203W 1030204W 1030205W 1030205W 1030205W 1030204U GLENHAROLD MINE GLENHAROLD MINE GLENHAROLD MINE GLENHAROLO MINE CENTER MINE CENTER MINE CENTER MINE CENTER MINE SOUTH BEULAH MINE SOUTH BEULAH MINE SOUTH BEULAH MINE SOUTH BEULAH MINE INDIAN HEAD MINE INDIAN HEAD MINE INDIAN HEAD MINE INDIAN HEAD MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE VELVA STRIP MINE NOE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA COUNTY BOWMAN BOWMAN BOWMAN BOWMAN STARK STARK STARK STARK MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER WILLIAMS WILLIAMS WILLIAMS DUNN OUNN DUNN OUNN DUNN OUNN DUNN DUNN DUNN DUNN DUNN OUNN DUNN DUNN OUNN DUNN OUNN DUNN DUNN QUADRANGLE SCRANTON NE (7.5') SCRANTON NE (7.5') SCRANTON NE (7. 5') SCRANTON NE (7.5') LEHIGH (7.5') LEHIGH (7.5') LEHIGH (7. 5') LEHIGH (7.5') ZAP (7.5') ZAP (7.5 1 ) ZAP (7.5') ZAP (7.5 1 ) MEDICINE BUTTE (7.5') MEDICINE BUTTE (7.5') MEDICINE BUTTE (7.5') MEDICINE BUTTE (7.5') BEULAH (7.5') BEULAH (7.5') CUSSICKS SPRING (7.5 1 ) CUSSICKS SPRING (7. 5') CUSSICKS SPRING (7.5') DUNN CENTER (7.5') OUNN CENTER (7.5') DUNN CENTER (7.5 ') OUNN CENTER (7.5') DUNN CENTER (7.5') OUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 1 ) DUNN CENTER (7.5 1 ) DUNN CENTER (7.5 ') OUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5 ') LATITUDE 461103N 461104N 461100N 461102N 465126N 465126N 465126N 465126N 471520N 471520N 471517N 471517N 47U39N 47U39N 471455N 47U55N 471450N 471450N 481045N 481045N 481045N 471708N 471708N 471708N 471708N 471708N 471708N 471745N 471745N 471745N 471733N 471733N 471733N 471733N 471733N 471733N 471711N 471711N 471711N 471732N LONGITUDE 1030205W 1030205W 1030205W 1030205W 1024125W 1024125W 1024125W 1024125W 1015422W 1015422W 1015412W 101 541 2W 1015338W 1015338W 1015330W 1015330W 10U532W 1014532W 1031210W 1031 21 OW 1031210W 1 02331 1W 1 02331 1W 1 02331 1W 1 02331 1W 1 02331 1W 1 02331 1W 1023403W 1023403W 1023403W 1023454W 1023454W 1023454W 1023454W 1023454W 1023454W 1023400W 1023400W 1023400W 1023302W LOCATION NAME PEERLESS MINE PEERLESS MINE PEERLESS MINE PEERLESS MINE NOE HUSKY INDUSTRIES MINE NDE NDE NOE NOE NDE NDE NDE NOE NDE NDE NDE NDE NDE NDE NOE NOE NDE NDE NDE NDE NDE NOE NDE NOE NDE NOE NDE NOE NDE NDE NOE NDE NOE NDE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 179373 01 793 74 D 1793 75 D 179376 D 179377 D 179379 D 179384 D186052 STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA COUNTY DUNN OUNN DUNN DUNN DUNN OUNN DUNN OUNN DUNN OUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN OUNN DUNN OUNN DUNN OUNN DUNN OUNN DUNN OUNN DUNN OUNN MERCER MERCER OLIVER DUNN OUNN BOWMAN QUADRANGLE DUNN CENTER (7. 5') DUNN CENTER (7.5 ') DUNN CENTER (7.5') DUNN CENTER (7.5 ') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') WERNER (7.5') WERNER (7. 5') DUNN CENTER (7.5') DUNN CENTER (7.5 1 ) DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7. 5') DUNN CENTER (7.5 ') WERNER (7. 5') DUNN CENTER (7.5 ') DUNN CENTER (7.5') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7. 5') DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7. 5') DUNN CENTER (7.5 1 ) DUNN CENTER (7.5 1 ) DUNN CENTER (7.5') DUNN CENTER (7.5') DUNN CENTER (7.5') ZAP (7.5 1 ) HAZEN EAST (7.5') RED BUTTE NW (7.5 1 ) MANNING (7.5 1 ) MANNING (7.5 1 ) SCOLE SCHOOL (7.5') LATITUDE 471732N 4 71 SOON 471 SOON 471 SOON 471803N 471803N 471 SOON 471800N 471800N 471800N 471750N 471813N 471707N 471613N 471706N 471745N 471707N 471758N 471707N 471615N 471852N 471549N 471615N 472034N 471944N 471822N 471852N 471852N 471826N 471813N 471913N 471913N 471859N 471859N 471530N 471614N 471142N 471009N 471009N 460000N LONGITUDE 1023302W 1023322W 1023322W 1023322W 1023229W 1023229W 1023215W 1023215W 1023215W 1 02321 5W 1023517W 1023130W 1022744W 1 02291 1W 1023323W 1023015W 1023516W 1023645W 1023750W 1023246W 1022743W 1023713W 1023400W 1023243W 1023400W 1023515W 1023459W 1023459W 1023403W 1023442W 1023516W 1023516W 1023413W 1023413W 1015345W 1013601W 1014433W 1025145W 1025145W 1030000W LOCATION NAME NDE NDE NOE NDE NOE NDE NOE NDE NOE NDE NDE NDE NOE NDE NOE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NOE NDE NOE NDE NOE NDE NOE NDE NDE INDIAN HEAD MINE NDE NDE NDE NDE NDE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 165993 D 196053 D 196054 D 196055 D 196056 D 19605 7 D 196058 D 196059 D 196060 D1 96061 D 196062 D 196075 D1 96076 D1 96077 D 196078 D 196079 D 196080 D 196081 D 194858 D 194859 D 194860 D 194861 D 194862 D 194863 D 194864 D 194866 D 194867 D 194868 STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA COUNTY BOWMAN MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER HETTINGER HETTINGER ADAMS GRANT GRANT MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER OLIVER OLIVER OLIVER QUADRANGLE SCOLE SCHOOL (7.5') ZAP (7. 5') ZAP (7. 5') BEULAH (7. 5') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5 ') BEULAH (7.5') BEULAH (7.5') ZAP (7.5') BEULAH NW (7.5') BEULAH (7.5') LONG BUTTE (7.5') LONG BUTTE (7.5 ') PLUM BUTTE NE (7.5') LEITH (7.5') NEW LEIPZIG N (7.5') BEULAH NE (7.5') BEULAH NE (7.5') BEULAH NE (7.5') BEULAH (7.5') BEULAH (7.5 ') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5') BEULAH (7.5') ZAP (7.5') ZAP (7.5') STANTON (7.5') STANTON (7.5') STANTON (7.5 ') HAZEN NW (7. 5') HAZEN NW (7.5') HANNOVER NE (7.5') HANNOVER NE (7.5') HANNOVER NE (7.5') LATITUDE 460000N 471850N 471850N 471848N 471848N 471848N 471914N 471914N 471924N 471924N 471924N 47221 6N 472338N 471940N 461405N 461405N 461206N 4621 24N 462337N 472309N 472309N 472309N 47221 5N 4721 26N 4721 15N 4721 15N 4721 15N 471940N 471940N 471940N 471920N 471920N 471640N 471640N 471640N 472423N 472423N 471306N 471306N 471306N LONGITUDE 1030000W 1015234W 1015234W 1015137W 1015137W 1015137W 1015045W 1015045W 1014940W 1014940W 1014940W 1015232W 1015306W 1015259W 1022100W 1022100W 1020337W 1014143W 1015749W 1015145W 1015145W 1015145W 1015115W 1015225W 1015052W 1015052W 1015052W 1015214W 1015214W 1015214W 101540DW 1015400W 1012538W 1012538W 1012538W 1014335W 1014335W 1012109W 1012109W 1012109W LOCATION NAME NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 196626 STATE NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH NORTH DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA DAKOTA COUNTY GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN GOLDEN MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER MERCER STARK STARK STARK STARK STARK STARK STARK STARK STARK STARK STARK STARK STARK VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY VALLEY QUADRANGLE DUCK CREEK DUCK CREEK DUCK CREEK DUCK CREEK DUCK CREEK ODLAND DAM ODLAND DAM ODLAND DAM ODLAND DAM ODLAND DAM ODLANO DAM ODLAND DAM ODLAND DAM DUCK CREEK DUCK CREEK DUCK CREEK DUCK CREEK BEULAH (7.5 BEULAH (7.5 (7 (7 (7 (7 (7, NE NE NE NE NE NE (7. (7. (7. (7. (7. (7. ') ') (7.5') (7.5') (7.5') (7.5') (7.5') (7.5') 5') 5') 5') 5') 5') 5') BEULAH (7.5 ') BEULAH (7.5 BEULAH (7.5 ') ') BEULAH (7.5 1 ) BEULAH (7.5 BEULAH (7.5 BEULAH (7.5 ') ') ') BEULAH (7.5 ') BELFIELD NE BELFIELD NE BELFIELD NE BELFIELD NE BELFIELO NE BELFIELD NE BELFIELO NE BELFIELD NE BELFIELD NE BELFIELD NE BELFIELO NE BELFIELO NE BELFIELD NE (7 (7 (7 (7 (7 (7 (7 (7 (7 (7 (7 (7 (7 LATITUDE 464632N 464632N 464632N 464713N 464713N 470118N 4701 18N 470118N 470118N 470118N 470118N 47004 1N 470041 N 464907N 464907N 464907N 465045N 471657N 471657N 471657N 471657N 471759N 471759N 471759N 471718N 471718N 471718N 465749N 465749N 465849N 465849N 465849N 465634N 465634N 465634N 465655N 465655N 465655N 4655 12N 4655 12N LONGITUDE 1040050W 1040050W 1040050U 1040120U 1040120U 1040015W 1040015W 1040015U 1 04001 5W 1040015U 1 04001 5W 1040100U 1040100W 1040130U 1040130W 1040130W 1040145U 1014938U 1014938W 1014938W 1014938W 1014856U 1014856U 1014856U 1014822U 1014822U 1014822U 1030502U 1030502W 1 03031 8W 1030318U 1030318W 1030504U 1030504U 1030504W 1 03003 1W 1 03003 1W 1 030031 W 1030345W 1030345U LOCATION NAME NOE NDE NOE NDE NOE NDE NOE NDE NDE NDE NOE NDE NDE NDE NDE NOE NOE NOE NOE NOE NOE NOE NOE NDE NDE NDE NOE NOE NDE NDE NDE NOE NDE NOE NDE NOE NDE NDE NDE NOE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D213998 D2H001 STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA COUNTY STARK STARK STARK STARK STARK STARK MCKENZIE MCKENZIE MCKENZIE MCKENZIE MCKENZIE MCKENZIE MCKENZIE MCKENZIE MCKENZIE BURKE MCLEAN MCLEAN HETTINGER HETTINGER WARD BURKE HETTINGER GOLDEN VALLEY GOLDEN VALLEY GOLDEN VALLEY GOLDEN VALLEY GOLDEN VALLEY WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS QUADRANGLE BELFIELD (7. 5') BELFIELD NE (7. 5') BELFIELD NE (7. 5') BELFIELD NE (7.5') BELFIELD (7.5') BELFIELD (7. 5') SHEEP CREEK (7. 5') SQUAW GAP (7.5') FLAT ROCK BUTTE (7.5') PHILLIP SPRING (7.5') PHILLIP SPRING (7.5') JOHNSONS CORNER (7.5 ') CROFF (7.5') KEENE (7.5 ( ) KEENE (7.5') RENNIE LAKE (7.5') EMMET (7.5 ') BLUE HILL (7.5') REGENT (7.5') EAST RAINY BUTTE (7.5') MINOT (15') COLUMBUS (7.5 ') REGENT (7.5 ( ) DUCK CREEK (7.5') DUCK CREEK (7.5') DUCK CREEK (7.5 ') HOOT OWL CREEK (7.5') ODLAND DAM (7.5') RAY SE (7.5') RAY SE (7.5') RAY SE (7.5') RAY (7. 5') RAY (7.5') CUSSICKS SPRING (7.5') CUSSICKS SPRING (7.5') CUSSICKS SPRING (7. 5') CUSSICKS SPRING (7.5') RED MIKE HILL (7.5') BLACKTAIL LAKE SE (7.5') BLACKTAIL LAKE SE (7.5') LATITUDE 465602N 465457N 465457N 4654 17N 4654 17N 4654 17N 473705N 472620N 4723 15N 473645N 473645N 474745N 474450N 475602N 475602N 484825N 473853N 474830N 462633N 462630N 480355N 48543 1N 462633N 464632N 46471 4N 46490 7N 470037N 4701 08N 48203 1N 481743N 481743N 481730N 481730N 481032N 481032N 481233N 481233N 481335N 481525N 481525N LONGITUDE 1030956W 1030000W 1030000W 1030900W 1030900W 1030900W 1 03464 OW 1035730W 1035145W 1035505W 1035505W 1025630W 1025900W 1025510W 1025510W 1023401W 1013757W 101 3805 W 1023723W 1025256W 1011710W 1024825W 1023723W 1040100W 1040135W 1040140W 1035958W 1 04001 5W 1030356W 1030156W 1030156W 1 03075 OW 1 03075 OW 1031022W 1031022W 1031 135W 1031135W 1030118W 1033059W 1033059W LOCATION NAME NDE NOE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE TWIN TO HOLE TWIN TO HOLE TWIN TO HOLE TWIN TO HOLE TWIN TO HOLE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE WB-3 WB-104 WB-14 WB-107 WB-53

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D2 10367 D 175972 D165751 D165752 D165753 D1 65756 D165757 D 165758 D 165759 D 165 760 D 165761 D1 65762 D 165 763 D 165764 D1 65765 D165766 D 178086 D 178087 D 178088 D188118 D188119 D188120 D188121 D188122 D188124 D188125 STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA COUNTY WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS WILLIAMS MCLEAN MERCER MERCER MERCER MERCER RICHLAND RICHLAND RICHLAND RICHLANO RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND MCCONE MCCONE MCCONE MCCONE MCCONE MCCONE MCCONE MCCONE QUADRANGLE BLACKTAIL LAKE SE (7.5 ') WILLISTON EAST (7. 5') WILLISTON EAST (7. 5') WILLISTON EAST (7. 5') OTTER TAIL CREEK (7. 5') OTTER TAIL CREEK (7. 5') TRENTON NE (7.5 ') TRENTON NE (7.5 ') GARRISON NE (7.5') BEULAH NE (7.5 ') BEULAH (7. 5') HAZEN NE (7.5') HAZEN NE (7.5 ') SAVAGE (7. 5') SAVAGE (7.5 ') SAVAGE (7.5') SAVAGE (7.5') SAVAGE (7.5 ') SAVAGE (7.5 ') SAVAGE (7.5') SAVAGE (7.5') SAVAGE (7.5 ') SAVAGE (7.5 ') SAVAGE (7.5') SAVAGE (7.5') SAVAGE (7.5 ') SAVAGE (7.5 ') SAVAGE (7.5') SAVAGE (7.5') DUGOUT CREEK (7.5') THREE BUTTES (7.5') THREE BUTTES (7.5') BROCKWAY NE (7.5') BROCKWAY NE (7.5') BROCKWAY NE (7.5') BROCKWAY NE (7.5') BROCKWAY NE (7.5') BEAUTY CREEK (7.5') BEAUTY CREEK (7.5') BEAUTY CREEK (7.5') LATITUDE 481525N 481454N 481454N. 481454N 481521N 481521N 481153N 481153N 473847N 472231 N 471501N 47223 1N 472232N 472232N 472232N 472232N 472232N 472232N 472232N 472230N 472230N 472230N 472230N 472230N 472230N 472400N 472400N 472230N 472230N 480000N 480000N 480000N 473000N 473000N 473000N 473000N 473000N 472230N 472230N 472229N LONGITUDE 1033059W 1033103W 1033103W 1033103W 1034124W 1034124W 1034754W 1034754W 1012000W 1015230W 1015230W 1013730W 1013730W 1042230W 1042230W 1042230W 1042230W 1042230W 1042230W 10421 SOW 10421 SOW 10421 SOW 1042000W 1042000W 1042000W 1042130W 1042130W 10421 SOW 10421 SOW 1043730W 1043000W 1043000W 1055230W 1055230W 1055230W 1055235W 1055235W 1060000W 1060000W 1060005W LOCATION NAME NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NOE NOE NOE NOE NDE NDE NOE NDE NOE NOE NDE NDE NOE NOE NOE NDE NDE NDE NDE NDE NDE NDE NDE NOE NDE NDE NDE NOE NDE NDE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D188126 D188127 D188128 D188130 D188131 D188135 D188136 D188137 D188138 D188140 D188141 D188K2 D188U3 D188U4 D188145 01 8925 7 STATE MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA COUNTY MCCONE SHERIDAN DAWSON OAWSON OAWSON OAWSON DAWSON DAWSON DAWSON DAWSON RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLAND RICHLANO WIBAUX WIBAUX RICHLANO RICHLAND RICHLAND RICHLANO DAWSON DAWSON DAWSON OAWSON WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX WIBAUX QUADRANGLE BEAUTY CREEK (7.5') TADPOLE LAKE (7.5') RED TOP (7.5') STINKING COULEE (7. 5') STINKING COULEE (7.5') INTAKE NW (7.5 ') INTAKE NW (7. 5') INTAKE NW (7.5') INTAKE NW (7.5') ALLARD RANCH (7.5') BUTLER TABLE (7.5') BUTLER TABLE (7.5') SKAAR (7.5') SKAAR NE (7.5') SKAAR NE (7.5 ') SKAAR NE (7.5') SKAAR NE (7.5') PARSON CREEK (7.5') PARSON CREEK (7.5') KNIFE RIVER MINE (7.5') KNIFE RIVER MINE (7.5') KNIFE RIVER MINE (7.5') KNIFE RIVER MINE (7.5') POVERTY FLAT WEST (7.5') POVERTY FLAT WEST (7.5') POVERTY FLAT WEST (7.5 ') POVERTY FLAT WEST (7.5') OOLAND 0AM SW (7.5 1 ) ODLAND DAM SW (7.5') BEACH WEST (7.5') BEACH WEST (7.5') BEACH WEST (7. 5') BEACH WEST (7. 5') BEACH WEST (7.5') BEACH WEST (7.5') BEACH WEST (7.5') OOLAND 0AM SW (7.5') BEACH WEST (7.5') BEACH WEST (7.5') ODLAND DAM (7.5') LATITUDE 472229N 484500N 473000N 472230N 472230N 473000N 473000N 473000N 473000N 473000N 473730N 473730N 472230N 473000N 473000N 473000N 473000N 471 SOON 471500N 472748N 472748N 472748N 472748N 470822N 470822N 470822N 470822N 470525N 470525N 465755N 465755N 465755N 465 75 5 N 465755N 465408N 465408N 470605N 465534N 465534N 4701 18N LONGITUDE 1060005W 1040730W 104523DW 1050000W 1050000W 1044500W 10445DOW 1044500W 1044500W 1 04373 OW 1044500W 104450DW 1040730W 1 04073 OW 1 04073 OW 1040730W 1040730W 1041500W 1041500U 104 263 OW 1042630W 1042630W 1042630W 1 04571 7W 1045 71 7W 1045717W 1045717W 1041210W 1041 21 OW 1040455W 1040455W 1040455W 1040455W 1040455W 1040512W 1040512W 1041340W 1040620W 1040620W 1040512W LOCATION NAME NDE NDE NDE NOE NDE NOE NOE NOE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NOE NOE NDE NOE NDE NOE NDE NOE NDE NOE NOE NDE NDE NDE NDE NDE NDE NOE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER STATE MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA COUNTY UIBAUX WIBAUX UIBAUX UIBAUX WIBAUX UIBAUX UIBAUX UIBAUX UIBAUX ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT SHERIDAN SHERIDAN SHERIDAN SHERIDAN SHERIDAN SHERIDAN UIBAUX UIBAUX ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT QUADRANGLE ODLAND DAM (7.5 ') ODLAND DAM (7.5 1 ) DUCK CREEK (7.5') DUCK CREEK (7. 5') DUCK CREEK (7.5 ') ODLAND DAM SU (7.5 ') ODLANO DAM SU (7.5 ') ODLAND DAM SU (7.5 ') ODLAND DAM SU (7.5 ') HAY CREEK (15 1 ) HAY CREEK (15') HAY CREEK (15 ') HAY CREEK (15') HAY CREEK (15') HOMESTEAD (15 1 ) HAY CREEK (15') BREDETTE (7. 5') BREOETTE (7.5 1 ) BREDETTE (7.5 1 ) BREOETTE (7.5') SCO (15') SOO (15') SMOKE CREEK (15') ALKALI COULEE (7.5') ALKALI COULEE (7.5 ') ALKALI COULEE (7.5 ') SOO (15') SOO (15') OTTER CREEK (15') BEACH UEST (7.5') ODLAND DAM (7.5 ') CALAIS (7. 5') CALAIS (7. 5') CALAIS (7.5') CALAIS (7.5') CALAIS (7.5') CALAIS (7.5') FORT KIPP (7.5 1 ) FORT KIPP (7.5') LATITUDE 4701 18N 470118N 46471 ON 46471 ON 464 71 ON 470236N 470502N 470525N 470525N 482945N 482945N 482945N 482945N 482945N 482710N 482530N 483300N 483300N 483300N 483300N 483145N 483145N 482320N 483425N 483425N 483425N 483400N 483400N 483100N 465525N 470120N 480950N 48095 ON 48095 ON 480950N 481 01 ON 481010N 480950N 480950N LONGITUDE 1040512U 1040512U 1040250U 1040250U 1040250U 1040915U 1041000U 1041210U 1041210U 1050240U 1050240U 1050240U 1050240U 1050240U 1044030U 1050510U 1051650U 1051650U 1051650U 1051650U 1045130U 1045130U 1045055U 1043545U 1043545U 1043545U 1 04465 OU 1044650U 1044030U 1040620U 1 04045 7U 1045010U 1045010U 1045010U 1 04501 OU 1044525U 1044525U 1044045U 1044045U LOCATION NAME NDE NDE NOE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NOE NDE NOE NDE NOE NDE NOE NDE NDE NDE NOE NDE NDE NDE NDE NDE NDE NDE NOE NDE NDE NOE NDE NOE NDE

Table 1a. (cont'd.) Location information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D209961 D209962 D209963 D20996A D209966 D240927 D240929 D240931 D240932 D240934 D240941 STATE MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA MONTANA COUNTY ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT ROOSEVELT OAWSON OAWSON OAWSON OAWSON DAWSON DAWSON DAWSON OAWSON DAWSON DAWSON DAWSON DAWSON MCCONE MCCONE MCCONE QUADRANGLE FORT KIPP (7. 5') CALAIS (7.5') CALAIS (7.5') CALAIS (7.5') CALAIS (7.5') CALAIS (7.5') CALAIS (7.5') CALAIS (7. 5') NOE NDE INTAKE NW (7.5') INTAKE NW (7.5') INTAKE NW (7.5') INTAKE NW (7.5') INTAKE NW (7.5') CLAY BUTTE (7.5') RICHEY SE (7.5') RICHEY SE (7.5') PLEASANT VIEW (7. 5') PLEASANT VIEW (7.5') WOODWORTH HILL (7.5') WOODWORTH HILL (7.5') BUFFALO CREEK (7.5 ') LATITUDE 480950N 481310N 48131DN 481310N 481145N 481145N 481340N 481340N NDE NOE 472243N 472243N 472243N 47231 1N 47231 1N 473237N 473029N 473029N 470302N 470208N 472808N 472808N 473101N LONGITUDE 1044045W 1044700W 1044700W 1044700U 1045145U 1045145W 1045010W 1045D10W NDE NDE 1043750W 1043750W 1043750W 1043903W 1043903W 1045620W 1050008W 1050008W 1045746W 1045816W 1052632W 1052632W 1052929W LOCATION NAME NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NOE NDE NDE NDE NOE NDE NOE NDE NOE NDE NDE

Table 1b. Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. NDE no data entered. SAMPLE NUMBER D 165565 D165566 D165567 D165568 D165569 D165570 D165571 D165572 D165573 D 1655 74 D165575 D 1655 76 D165577 D165578 D165579 D 165605 D 165606 D 165607 D 165608 D 165609 D165610 D165611 D165612 D165613 D165632 D 165974 D 165976 D 165977 D 165979 D 165983 D 165985 GROUP/FORMATION FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP BULLION CREEK BULLION CREEK BULLION CREEK BULLION CREEK BULLION CREEK BULLION CREEK BULLION CREEK BULLION CREEK BULLION CREEK FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP BED NAME NDE HAGEL NDE HAGEL HAGEL HAGEL HAGEL HAGEL BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP COTEAU COTEAU COTEAU COTEAU COTEAU COTEAU COTEAU COTEAU COTEAU NOONAN NDE NDE NDE NOE NDE NDE NDE NDE NDE NOE NOE NOE NOE NOE ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. CG-1-73 CG-2-73 CG-3-73 CG-4-73 BN-5-73 BN-6-73 BN-7-73 BN-8-73 KR-9-73 KR-10-73 KR-11-73 KR-12-73 NA-13-73 NA-14-73 NA-15-73 NA-16-73 B-N-1 LJ-1-74 LJ-2-74 LJ-3-74 LJ-4-74 LJ-5-74 LJ-6-74 LJ-7-74 LJ-8-74 LJ-9-74 LJ-10-74 LJ-11-74 LJ-12-74 LJ-13-74 LJ-14-74 COLLECTOR USGO- SWAN SON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D165991 D173467 D 173468 D 173469 D 178502 GROUP/ FORMAT I ON FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP SENTINEL BUTTE FORT UNION GP BED NAME NOE NOE NOE NOE LEHIGH NOE NDE NOE BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP UNCORRELATEO UNCORRELATEO UNCORRELATED NOE NOE NOE BEULAH-ZAP BEULAH-ZAP NOE NOE BEULAH-ZAP BEULAH-ZAP NOE NOE NOE BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP NOE NDE BEULAH-ZAP NDE ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. LJ-15-74 LJ-16-74 LJ-17-74 LJ-18-74 ST-1-75 ST-2-75 ST-3-75 ST-4-75 HER- 1-75 MER-2-75 MER-3-75 MER-4-75 MER-5-75 MER-6-75 MER-7-75 MER-8-75 MER-9-75 MER-10-75 C-169-5-1 C-169-5-2 C-169-5-3 DH-75-101-1 DH-75-101-2 DH-75-101-3 DH-75-101-4 DH-75-101-5 DH-75-101-6 DH-75-104-1 DH-75-104-2 DH-75-104-3 DH-75-102-1 DH-75-102-2 DH-75-102-3 DH-75-102-4 DH-75-102-5 DH-75-102-6 DH75-103-1 DH75-103-2 DH75-103-3 DH75-105-1 COLLECTOR USGO-SUANSON V E USGD- SWAN SON V E USGD-SUANSON V E USGO-SUANSON V E NDGS-CARLSON C G NOGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NOGS NOGS NOGS NOGS NOGS NOGS NOGS NOGS NOGS NOGS USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E USGD-SUANSON V E USGO-SUANSON V E

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179377 D 1793 78 D 1793 79 D 179381 D 179302 D180007 D180008 D 1800 75 D 180081 D 180083 D186055 GROUP/ FORMAT I ON SENTINEL BUTTE FORT UNION GP FORT UNION GP SENTINEL BUTTE FORT UNION GP SENTINEL BUTTE FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP FORT UNION GP BULLION CREEK BED NAME BEULAH-ZAP NDE NDE BEULAH-ZAP NDE BEULAH-ZAP NDE BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP NDE BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP NDE NDE BEULAH-ZAP BEULAH-ZAP SCHOOL HOUSE NDE NDE NDE HARMON ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. DH75-105-2 DH75- 106-1 OH75-106-2 DH75- 106-3 DH75- 107-1 OH75-107-2 OH75- 108-1 DH75-108-2 OH75-108-3 OH75- 100-4 DH75- 109-1 DH75-113-1 SD-1 SD-2 SD-3 SD-4 SD-5 SD-6 SD-7 SD-8 SD-9 SD-10 SO- 11 SD-12 SO- 13 DH-110-1 DH-111-1 DH-111-2 DH-114-1 DH-116-1 DH-117-1 DH-117-2 DH-118-1 DH-118-2 BZ-123 M-16-1 M-16-2 LJ-19-74 COLLECTOR USGD- SWAN SON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G USGD-SUANSON V E

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 165993 D 196052 D 196053 D 196054 D 19605 5 D 196056 D 196057 D 196058 D 196059 D196061 D 196062 D 196075 D 196076 D194D34 GROUP/FORMATION BULLION CREEK FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP SENTINEL BUTTE FORT UNION GP SENTINEL BUTTE FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP SENTINEL BUTTE SENTINEL BUTTE FORT UNION GP FORT UNION GP FORT UNION GP BED NAME HARMON NDE NOE NDE NDE NDE NOE NDE NDE NDE NDE NDE BEULAH-ZAP BEULAH-ZAP NDE NDE NDE NDE NDE BEULAH-ZAP BEULAH-ZAP NDE BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP BEULAH-ZAP NDE BEULAH-ZAP NDE BEULAH-ZAP NDE NDE NDE NDE BEULAH-ZAP BEULAH-ZAP NDE NDE NDE ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. LJ-20-74 77- 1 1 1 - 1 P-6A-1 P-3A-1 H-33C-1 H-33C-2 H-30C-1 H-16C-1 H-43-1 P-3G-1 P-3G-2 P-3G-3 P-1A-1 P-1A-2 P-1G-1 P-1G-2 P-1G-3 COLLECTOR USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E NDGS-CARLSON C G NOGS- CAR LSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D196631 D 196633 GROUP/ FORMAT I ON FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP BED NAME UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED NDE NDE NDE NOE NDE NOE NDE NDE NDE NDE NDE NDE NOE NDE NDE NOE NDE NDE NOE NDE NDE NDE NDE ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. WB-3-1 WB-3-2 WB-3-3 WB-104-1 WB-104-2 WB-55-1 WB-55-2 WB-55-3 WB-55-4 WB-55-4A WB-55-5 WB- 107-1 WB-107-2 WB-14-1 WB-14-2 WB-14-3 WB-24-1 79- 101 A 79-101B 79-102A 79-102B 79-103A 79-103B COLLECTOR USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D213996 D213997 D213998 D2 13999 D214000 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 1964 04 D 196405 D 196406 D 196407 D210365 D2 10368 D2 10369 D210371 D210372 D210366 D210370 D 196593 D 196594 D 196595 D 196596 D 196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240982 D240983 D 24 0984 GROUP/ FORMAT I ON FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP BED NAME NDE NDE NDE NDE NDE NDE UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. MK-7-1 MK-12-1 MK-15-1 MK-17-1 MK-17-2 MK-40-1 MK-41-1 MK-45-1 MK-45-2 BU9C MCL14C MCL37C RS12C-2 RS16C BU31C RS12C-1 WB-4-1 WB-7-1 WB-13-1 WB-54-1 WB-103-1 DH81-101-1 DH81- 103-1 DH81-103-2 DH81-105-1 DH81-105-2 DH81-106-1 DH81-106-2 DH81-107-1 DH81-107-2 DH81- 108-1 DH81-109-1 DH81-109-2 COLLECTOR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGS-USBR USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G NDGS-CARLSON C G USCD-SCHELL E NDGS-CARLSON C G NDGS-CARLSON C G USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USCD-HARKSON J C USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER GROUP/ FORMAT I ON FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM BED NAME UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED NDE NDE NDE NDE NDE NDE NDE NDE NOE NDE NDE NDE NDE NDE NDE NOE NDE NOE NDE NDE NOE NOE NDE NDE S S S S S S S UNNAMED ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. OH81-109-3 OH81-110-1 DH81-110-2 DH81-110-3 OH81-101A-1 OH81-101A-2 OH81-103A-1 OH81-103A-2 MCL5C VW-1-73 VW-2-73 VW-3-73 VW-4-73 VW-5-73 VW-6-73 VW-7-73 VW-8-73 VW-9-73 VW-10-73 VW-11-73 VW-12-73 VW-13-73 VW-14-73 VW-15-73 VW-16-73 76C-001A 76C-001B COLLECTOR USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B NOGS-CARLSON C G MTBM MTBM MTBM MTBM USGO-SWANSON V E USGD -SWAN SON V E USGD-SWANSON V E USGD -SWAN SON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D188126 D188127 D188128 D 1881 29 D188131 D188132 D188133 D188135 D188136 D188137 D 185 138 D188141 D188142 D188143 D188144 D188U5 D 189256 D 189257 D 189262 GROUP/FORMATION FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM BED NAME UNNAMED UNNAMED NDE NDE NOE UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED NDE NOE NDE NDE NDE NDE NDE NDE UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. 76C-010A 76C-011A 76C-011B KR-1A KR-1B KR-1C KR-1D CP-1A CP-1B CP-1C CP-1D WB-83-3 WB-83-4 WB-40-1 WB-40-1A WB-40-2 WB-40-3 WB-40-4 WB-31-1 WB-31-2 WB-87-1 WB-36-1 WB-36-2 WB-58-1 COLLECTOR USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SWANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGO-SUANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SUANSON V E USGO-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SUANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGD-SWANSON V E USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D196657 D 196658 GROUP/ FORMAT I ON FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM BED NAME UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNCORRELATEO UNCORRELATED UNCORRELATEO UNCORRELATED UNCORRELATED UNCORRELATEO UNCORRELATED UNCORRELATEO UNCORRELATED UNCORRELATED UNCORRELATEO UNCORRELATED UNCORRELATEO UNCORRELATEO UNCORRELATED UNCORRELATEO UNCORRELATED UNCORRELATEO UNCORRELATEO UNCORRELATEO UNCORRELATED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED ESTIMATED RANK FIELD ID NO LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE WB-58-1A WB-58-2 WB-6-1 WB-6-2 WB-6-3 WB-63-1 WB-85-1 WB-83-1 WB-83-2 GS-22C-1 GS-22C-2 GS-22C-3 GS-22C-4 GS-22C-5 GS-13C-1 GS-20C-1 GS-28C-1 GS-28C-2 GS-28C-3 GS-28C-4 GS-34C-1 GS-34C-2 GS-44C-1 GS-40C-1 GS-40C-2 GS-40C-3 GS-41C-1 GS-41C-2 GS-41C-3 GS-42C-1 WB-37-1 WB-59-1 2CP-1 2CP-2 2CP-3 COLLECTOR USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGS-HARKSON J C USGD-ARNDT H H USGD-ARNOT H H USGO-ARNOT H H USGO-ARNDT H H USGO-ARNOT H H USGO-ARNOT H H USGD-ARNDT H H USGD-ARNOT H H USGD-ARNDT H H USGO-ARNOT H H USGO-ARNDT H H USGO-ARNOT H H USGO-ARNOT H H USGD-ARNDT H H USGO-ARNDT H H USGO-ARNOT H H USGD-ARNDT H H USGO-ARNOT H H USGD-ARNDT H H USGD-ARNOT H H USGO-ARNOT H H USCO-HARKSON J C USCD-HARKSON J C USGO- HONEY J G USGO- HONEY J G USGO -HONEY J G USGO -HONEY J G USGO -HONEY J G USGD- HONEY J G USGD- HONEY J G USGD -HONEY J G

Table 1b. (cont'd.) Geologic information for 383 lignite samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D209962 D209964 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D 240934 D240935 D240936 D240937 D240938 D240939 D240940 GROUP/FORMATION FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM FORT UNION FM BED NAME . UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED UNNAMED ESTIMATED RANK LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE LIGNITE FIELD ID NO. DH 101-1 DH 101-2 DH 102-1 DH 102-2 DH 102-3 DH 103-1 DH 103-2 DH 105-1 DH 104-1 DH 104-2 DH 106-1 DH 107-1 DH 108-1 DH 108-2 OH 109-1 COLLECTOR USGD- HONEY J G USGD-HONEY J G USGO-HONEY J G USGD-HONEY J G USGD-HONEY J G USGD-HONEY J G USGD-HONEY J G USGO-HONEY J G USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B USGD-SCHNEIDER G B

Table 1c. Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. Values of 0 mean no data available. Data for associated sediments available in Table 2 for sample numbers marked with SAMPLE NUMBER D 165564 D165565 D165567 D165570 D165571 D165575 D 165577 D 165607 D165612 D 165976 D 165980 D 165986 DEPTH CM IN (0.0) (0.0) (0.0) (0.0) (0.0) (60.0) (0.0) (60.0) (0.0) (0.0) (0.0) (0.0) (66.0) (0.0) (66.0) (0.0) (0.0) (72.0) (144.0) (0.0) (72.0) (144.0) (0.0) (72.0) (144.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) SAMPLE CM THICKNESS IN (48.0) (84.0) (48.0) (84.0) (60.0) (60.0) (60.0) (60.0) (96.0) (36.0) (96.0) (36.0) (66.0) (66.0) (66.0) (66.0) (72.0) (72.0) (72.0) (72.0) (72.0) (72.0) (72.0) (72.0) (72.0) (0.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) SAMPLE TYPE CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL RUN OF MINE CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL ANALYTICAL LADS US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US GEOL. US GEOL. US GEOL. US BUR. US BUR. US BUR. US GEOL. US GEOL. US GEOL. US BUR. US GEOL. US GEOL. US BUR. US GEOL. US GEOL. US BUR. US BUR. US GEOL. US BUR. US GEOL. US GEOL. US BUR. US BUR. US GEOL. MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US . SURVEY , SURVEY , SURVEY MINES/US MINES/US MINES/US SURVEY SURVEY SURVEY MINES/US SURVEY SURVEY MINES/US SURVEY SURVEY MINES/US MINES/US SURVEY MINES/US SURVEY SURVEY MINES/US MINES/US SURVEY GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM UPPER SPLIT LOWER SPLIT UPPER SPLIT LOWER SPLIT PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL UPPER SPLIT PARTIAL UPPER SPLIT SINGLE SAMPLE SINGLE SAMPLE PARTIAL UPPER SPLIT PARTIAL UPPER SPLIT PARTIAL LOWER SPLIT PARTIAL LOWER SPLIT SINGLE SAMPLE SINGLE SAMPLE PARTIAL UPPER SPLIT PARTIAL UPPER SPLIT PARTIAL LOWER SPLIT PARTIAL LOWER SPLIT DATE YR/MO/DY

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 165988 D 165989 D 165990 D165991 D 173466 D173467 D 173468 D 173469 D 175931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 175938 D 175939 D 1781 43 D178144 D 1781 45 D 178498 D 178499 D 178500 D 178501 D 1785 02 D 178503 D 1785 04 D 178505 D 178506 D 178508 D 178509 01 785 10 D178512 D 179372 DEPTH CM IN (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (36.0) (72.0) (120.0) (397.2) (1754.4) (1894.8) (2028.0) (2545.2) (558.0) (969.6) (1081.2) (300.0) (537.6) (1213.2) (1966.8) (2024.4) (2082.0) (664.8) (1804.8) (2035.2) (841.2) SAMPLE CM THICKNESS SAMPLE TYPE IN (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (48.0) (60.0) (66.0) (60.0) (66.0) (60.0) (60.0) (48.0) (48.0) (48.0) (48.0) (36.0) (36.0) (36.0) (40.8) (68.4) (64.8) (72.0) (69.6) (30.0) (25.2) (64.8) (60.0) (31.2) (60.0) (25.2) (26.4) (28.8) (28.8) (60.0) (27.6) (150.0) (36.0) CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE US GEOL US BUR. US BUR. US GEOL US BUR. US GEOL US BUR. US GEOL US BUR. US GEOL US BUR. US GEOL US BUR. US GEOL US BUR. US GEOL US BUR. US GEOL US BUR. ANALYTICAL LABS . SURVEY MINES/US MINES/US . SURVEY MINES/US . SURVEY MINES/US . SURVEY MINES/US . SURVEY MINES/US . SURVEY MINES/US . SURVEY MINES/US . SURVEY MINES/US . SURVEY MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY US GEOL. SURVEY US GEOL. SURVEY US BUR. US BUR. US BUR. US BUR. MINES/US MINES/US MINES/US MINES/US GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY US GEOL. SURVEY US BUR. MINES/US GEOL. SURVEY US GEOL. SURVEY US BUR. MINES/US GEOL. SURVEY US GEOL. SURVEY US BUR. US BUR. US BUR. US BUR. US GEOL. US GEOL. US BUR. US BUR. US BUR. US BUR. MINES/US MINES/US MINES/US MINES/US SURVEY SURVEY MINES/US MINES/US MINES/US MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT DATE YR/MO/DY PARTIAL UPPER SPLIT PARTIAL UPPER SPLIT PARTIAL LOWER SPLIT PARTIAL LOWER SPLIT PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM UPPER SPLIT LOWER SPLIT UPPER SPLIT LOWER SPLIT UPPER SPLIT LOWER SPLIT UPPER SPLIT LOWER SPLIT UPPER SPLIT LOWER SPLIT UPPER SPLIT MIDDLE SPLIT LOWER SPLIT SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE COMP. USBM, SINGLE USGS COMP. USBM, SINGLE USGS SINGLE SAMPLE SINGLE SAMPLE COMP. USBM, SINGLE USGS COMP. USBM, SINGLE USGS SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE COMP. USBM, SINGLE USGS COMP. USBM, SINGLE USGS COMP. USBM, SINGLE USGS SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179377 D 179378 D 179379 D 179380 D 179381 D 179382 D 179384 D 180007 D 180008 D 180009 D180010 D180011 D180012 D180013 D180014 D180015 D180016 D180017 D180018 D180019 D 180075 DEPTH CM IN (970.8) (538.8) (1459.2) (1543.2) (451.2) (672.0) (409.2) (700.8) (771.6) (843.6) (1340.4) (348.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (573.6) (798.0) (1038.0) (716.4) (324.0) (130.8) (404.4) (266.4) (354.0) (0.0) (0.0) (0.0) (0.0) (84.0) (0.0) SAMPLE CM THICKNESS IN (248.4) (54.2) (32.4) (230.4) (34.8) (157.2) (33.6) (21.6) (27.6) (27.6) (163.2) (199.2) (222.0) (261.6) (228.0) (234.0) (186.0) (170.4) (98.4) (224.4) (171.6) (186.0) (204.0) (223.2) (213.6) (225.6) (205.2) (25.2) (241.2) (122.4) (197.0) (19.2) (27.6) (218.4) (0.0) (50.0) (48.0) (84.0) (84.0) (0.0) SAMPLE TYPE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE GRAB DRILL CORE DRILL COKE DRILL CORE DRILL CORE CHANNEL ANALYTICAL LABS US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US GEOL. US BUR. US BUR. US BUR. US GEOL. US GEOL. US BUR. US BUR. US BUR. US BUR. US BUR. US GEOL. US BUR. MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US HINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US SURVEY MINES/US MINES/US MINES/US SURVEY SURVEY MINES/US MINES/US MINES/US MINES/US MINES/US SURVEY MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT DATE YR/MO/DY SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM COMP. USBM, SINGLE USGS COMP. USBM, SINGLE USGS PARTIAL SEAM

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 165993 D 196053 D 196054 D 194858 DEPTH CM IN (0.0) 3718.5 (1464.0) 4565.9 (1797.6) 1731.2 (681.6) 3060.1 (1204.8) 3803.9 (1497.6) 2456.6 (967.2) 4843.2 (1906.8) 3261.3 (1284.0) 3364.9 (1324.8) 4245.8 (1671.6) 5145.0 (2025.6) 2377.4 (936.0) 3352.7 (1320.0) 1310.6 (516.0) 1706.8 (672.0) 1859.2 (732.0) (780.0) 1463.0 (576.0) 3938.0 (1550.4) 4236.7 (1668.0) 5974.0 (2352.0) 4242.8 (1670.4) 7455.4 (2935.2) 1670.3 (657.6) 6818.3 (2684.4) 7178.0 (2826.0) 4093.4 (1611.6) 4251.9 (1674.0) 4867.6 (1916.4) 5245.6 (2065.2) 6095.9 (2400.0) 3139. 4 '(1236.0) 5120.6 (2016.0) 6035.0 (2376.0) 4053.8 (1596.0) 4328.1 (1704.0) 1371.6 (540.0) 2346.9 (924.0) 4053.8 (1596.0) SAMPLE CM THICKNESS SAMPLE TYPE IN (0.0) (123.6) (68.4) (28.8) (138.0) (67.2) (216.0) (44.4) (30.0) (24.0) (228.0) (254.4) (40.0) (108.0) (91.0) (120.0) (120.0) (84.0) (126.0) (86.4) (136.8) (24.0) (204.0) (264.0) (241.2) (99.6) (102.0) (27.6) (126.0) (28.8) (132.0) (70.8) (52.0) (120.0) (76.0) (108.0) (84.0) (62.0) (74.0) (73.0) CHANNEL DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. ANALYTICAL LABS MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT PARTIAL SEAM SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE PARTIAL PARTIAL SINGLE SINGLE SINGLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SEAM SEAM SAMPLE SAMPLE SAMPLE DATE YR/MO/DY

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D 196624 D 196625 D 196634 D 196639 D2 13988 DEPTH CM IN (570.0) (894.0) (0.0) (588.0) (696.0) (420.0) (572.4) (920.4) (1104.0) (0.0) (1429.2) (1764.0) (0.0) (600.0) (696.0) (0.0) (522.0) (1572.0) (2959.2) (3126.0) (3416.4) (631.2) (1428.0) (1518.0) (318.0) (998.4) (1066.8) (466.8) (1740.0) (344.4) (1556.4) (1990.8) (354.0) (822.0) (436.4) (1791.6) (2202.0) (2336.4) (897.6) (1788.0) SAMPLE CM THICKNESS SAMPLE TYPE IN (12.0) (138.0) (130.8) (24.0) (132.0) (62.4) (11.0) (26.4) (252.0) (242.4) (9.6) (286.8) (213.6) (96.0) (180.0) (147.6) (270.0) (38.4) (66.0) (34.8) (145.2) (50.4) (136.8) (58.8) (61.2) (138.0) (45.6) (55.2) (78.0) (100.8) (45.6) (82.8) (44.4) (132.0) (43.2) (127.2) (28.8) (90.0) (120.0) (153.6) DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE ANALYTICAL LABS US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE PARTIAL SEAM PARTIAL SEAM SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE DATE YR/MO/DY

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D213996 D213997 D213998 D213999 D214000 D2U001 D 196399 D 196402 D 196403 D 1964 04 D1 96405 D 196406 D 196407 D2 10365 D2 10368 D210369 D210371 D210372 D2 18907 D210366 D2 10370 D 196593 D 196594 D 196595 D 196596 D 196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240982 D240983 D240984 DEPTH CM IN 2883.4 (1135.2) 3297.9 (1298.4) (2498.4) (638.4) (1795.2) (1971.6) (2112.0) (924.0) (828.0) (1338.0) (1590.0) (1254.0) (1014.0) (214.8) (636.0) (600.0) (1428.0) (1764.0) (2424.0) (1644.0) (1620.0) (1020.0) (480.0) (0.0) (0.0) (600.0) (1764.0) (0.0) (1956.0) (667.2) (1374.0) (2892.0) (3781.2) (2253.6) (2919.6) (954.0) (2661.6) (1508.4) (1600.8) (1723.2) SAMPLE CM THICKNESS SAMPLE TYPE IN (49.2) (212.4) (114.0) (60.0) (121.2) (52.8) (108.0) (118.8) (156.0) (108.0) (96.0) (150.0) (138.0) (68.4) (116.4) (108.0) (84.0) (156.0) (276.0) (144.0) (108.0) (108.0) (108.0) (0.0) (0.0) (0.0) (0.0) (0.0) (66.0) (128.4) (37.2) (39.6) (217.2) (45.6) (124.8) (120.0) (36.0) (171.6) (73.2) (85.2) DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL OTHER OTHER OTHER OTHER OTHER DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE COfiE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE ANALYTICAL LABS DATA VALUES REPRESENT US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE DATE YR/MO/DY

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D210367 D 175972 D 175973 D 175974 D 175975 D165757 D 165758 D 165759 D 165760 D165761 D 165762 D 165 763 D 165764 D 165 765 D 165 766 D 178086 D 178087 D 178088 D188118 D188119 D188120 D188121 D188122 D188123 D188124 D188125 DEPTH CM IN (2784.0) (1202.4) (2406.0) (3091.2) (1764.0) (2658.0) (1377.6) (2472.0) (1860.0) (1728.0) (684.0) (1470.0) (1560.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (2352.0) (1164.0) (1284.0) (936.0) (996.0) (1056.0) (2220.0) (2340.0) (1152.0) (1266.0) (381.0) SAMPLE CM THICKNESS SAMPLE TYPE IN (135.6) (186.0) (120.0) (183.6) (48.0) (105.6) (98.4) (60.0) (60.0) (48.0) (60.0) (1020.0) (60.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (168.0) (240.0) (240.0) (108.0) (108.0) (120.0) (120.0) (60.0) (60.0) (60.0) (54.0) (120.0) (87.6) (114.0) (78.0) (120.0) DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORR DRILL CORR DRILL CORE ANALYTICAL LABS DATA VALUES REPRESENT DATE YR/MO/DY GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE GEOCHEM. TESTING/US GEOL. SURVEY SINGLE SAMPLE US BUR. US BUR. US BUR. US GEOL US GEOL US GEOL US GEOL US GEOL US GEOL US BUR. US BUR. US BUR. US GEOL US GEOL US GEOL US BUR. US GEOL US GEOL US BUR. US BUR. US BUR. US BUR. US BUR. US GEOL US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. MINES/US MINES/US MINES/US . SURVEY . SURVEY . SURVEY . SURVEY . SURVEY . SURVEY MINES/US MINES/US MINES/US . SURVEY . SURVEY . SURVEY MINES/US . SURVEY . SURVEY MINES/US MINES/US MINES/US MINES/US MINES/US . SURVEY MINES/US MINES/US MINES/US MINES/US MINES/US MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM LOWER SPLIT LOWER SPLIT PARTIAL SEAM PARTIAL SEAM LOWER SPLIT PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM COMP. USBM, SINGLE USGS P. USBM, SINGLE USGS PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D188126 D188131 D188134 0188140* D188U1* 0188U2 D188143 D188145 D 196646 D196649 D196651 DEPTH CM IN (501.0) 7498.0 (2952.0) (432.0) 2011.6 (792.0) 0,0 (888.0) (2124.0) (2222.0) (2320.0) (2418.0) (816.0) (1128.0) (1218.0) (1320.0) (1800.0) (1818.0) (2616.0) (2653.2) (739.0) (1800.0) (146.4) (86.4) (26.4) (0.0) (115.2) (55.2) (14.4) (0.0) (888.0) (0.0) (552.0) (0.0) (1308.0) (1398.0) (1458.0) (1212.0) (1596.0) (2880.0) (646.8) (1150.8) (696.0) SAMPLE CM THICKNESS IN (113.0) (45.0) (96.0) (96.0) (96.0) (98.0) (97.9) (98.0) (110.0) (72.0) (90.0) (30.0) (72.0) (12.0) (183.0) (36.0) (52.8) (53.0) (96.0) (60.0) (60.0) (60.0) (26.4) (22.8) (60.0) (40.8) (14.4) (168.0) (184.8) (216.0) (216.0) (60.0) (51.6) (8.4) (372.0) (24.0) (108.0) (504.0) (12.0) (175.2) SAMPLE TYPE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL CHANNEL DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE ANALYTICAL LABS US BUR. MINES/US GEOL. US BUR. MINES/US GEOL. STATE STATE STATE STATE STATE STATE STATE STATE STATE STATE US BUR US BUR US BUR US BUR AGENCY/US AGENCY/US AGENCY/US AGENCY/US AGENCY/US AGENCY/US AGENCY/US AGENCY/US AGENCY/US AGENCY/US . MINES/US . MINES/US . MINES/US . MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY US GEOL. SURVEY US BUR US BUR US BUR US BUR US BUR US BUR US BUR US BUR US BUR US BUR US BUR . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US . MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US US BUR. MINES/US GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT DATE YR/MO/DY PARTIAL SEAM SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM COMP. USBM, SINGLE USGS COMP. USBM, SINGLE USGS SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER 01 9665 7 D 196659 D221126 D221127 D221129 D221130 D221131 D221132 0221 HO DEPTH CM IN (0.0) 2496.3 (982.8) (553.2) 1661.1 (654.0) (0.0) 1551.4 (610.8) 2377.4 (936.0) 1310.6 (516.0) 1432.5 (564.0) 3419.8 (1346.4) 4571.9 (1800.0) 10988.0 (4326.0) 11061.1 (4354.8) 11311.1 (4453.2) 4130.0 (1626.0) 6617.2 (2605.2) 5047.4 (1987.2) 6294.1 (2478.0) 9927.3 (3908.4) 10091.9 (3973.2) 6952.4 (2737.2) 7437.1 (2928.0) 3779.5 (1488.0) 3462.5 (1363.2) 3645.4 (1435.2) 4395.2 (1730.4) 1463.0 (576.0) 4916.4 (1935.6) 5196.8 (2046.0) 874.7 (344.4) 1651.0 (650.0) 1778.0 (700.0) 7449.3 (2932.8) 7427.9 (2924.4) 8839.1 (3480.0) 9278.1 (3652.8) 3575.3 (1407.6) 4105.6 (1616.4) 4645.1 (1828.8) 4718.3 (1857.6) SAMPLE CM THICKNESS SAMPLE TYPE IN (134.4) (156.0) (25.2) (108.0) (108.0) (60.0) (90.0) (48.0) (24.0) (58.8) (52.8) (22.8) (50.4) (34.8) (52.8) (58.8) (22.8) (62.4) (54.0) (12.0) (61.2) (42.0) (72.0) (28.8) (148.8) (44.4) (39.6) (100.8) (57.6) (129.6) (0.0) (0.0) (37.2) (61.2) (54.0) (79.2) (104.4) (108.0) (25.2) (16.8) DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL OTHER OTHER DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE ANALYTICAL LABS US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US GEOL US GEOL US GEOL US BUR. US BUR. US GEOL US BUR. US BUR. US GEOL US GEOL US GEOL US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US GEOL US BUR. US GEOL US GEOL, US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. . SURVEY . SURVEY . SURVEY MINES/US GEOL. MINES/US GEOL. . SURVEY MINES/US GEOL. MINES/US GEOL. . SURVEY . SURVEY . SURVEY MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. . SURVEY MINES/US GEOL. . SURVEY . SURVEY MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. MINES/US GEOL. SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE PARTIAL SEAM PARTIAL SEAM SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE PARTIAL PARITAL SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SEAM SEAM DATE YR/MO/DY

Table 1c. (cont'd.) Sample information for 383 lignites from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941 DEPTH CM IN (2424.0) (810.0) (1134.0) (1268.4) (2124.0) (2161.2) (3310.8) (3326.4) (1014.0) (1248.0) (2512.8) (2719.2) (2780.4) (2448.0) (2688.0) (1222.8) (1809.6) (2475.6) (1220.4) (1424.4) (1281.6) (2476.8) (1652.4) SAMPLE CM THICKNESS IN (85.0) (43.2) (114.0) (9.6) (33.6) (36.8) (12.0) (64.8) (234.0) (192.0) (121.2) (37.2) (240.0) (240.0) (171.6) (265.2) (159.6) (60.0) (184.8) (184.8) (43.2) (220.8) (121.2) SAMPLE TYPE DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL DRILL CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE CORE ANALYTICAL LABS DATA VALUES REPRESENT US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. US BUR. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. GEOCHEM. MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY MINES/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY TESTING/US GEOL. SURVEY SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM PARTIAL SEAM SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE SINGLE SAMPLE DATE YR/MO/DY

Table 1d. Proximate and ultimate analyses,' heat content, forms of sulfur, free-swelling index, and ash-fusion temperature determinations for 328 coal samples from the Fort Union Region- North Dakota and Montana. [All analyses in percent except Kcal/kg, Btu/lb, free-swelling index and ash-fusion temperatures. For each sample number, the analyses are reported three ways: first, as received (moisture included in H and 0); second, moisture-free; and third, moisture- and ash-free. Analyses are by a commercial testing laboratory following ASTM standards. G for ash-fusion temperatures means greater than 1540 degrees C. Zero values indicate no data available. A "C" after the sample number indicates a composited sample. The USGS makes no claims as to the accuracy of rank calculated from parameters in Table 1d.] SAMPLE NUMBER D 165564 D165565 D165566 D 165567 D 165569 D165570 D165571 D 165572 D165573 D 165574 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,980 6,080 6,510 4,340 6,080 6,510 4,430 6,040 6,470 4,180 6,100 6,520 3,940 5,990 6,510 3,810 5,760 6,580 4,030 6,040 6,460 3,940 6,040 6,480 4,030 5,740 6,550 4,130 6,150 6,650 3,570 4,980 6,400 7,160 10,950 11,720 7,820 10,950 11,720 7,980 10,870 11,650 7,530 10,980 11,730 7,090 10,780 11,720 6,860 10,360 11,850 7,260 10,870 11,630 7,100 10,870 11,660 7,250 10,330 11,790 7,430 11,070 11,960 6,420 8,970 11,530

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D165564 D165565 D165566 D165567 D165568 D165569 D165570 D165571 D165572 D165573 D 165574 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 165575 D 165576 D165577 D 165578 D165579 D 165609 D 165610 D 165632 D 165976 D 165979 D 165980 MOISTURE ' PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,410 4,880 6,420 3,890 5,650 6,620 3,820 5,460 6,630 4,090 5,900 6,480 3,950 5,720 6,350 3,730 5,940 6,600 3,750 6,140 6,540 3,710 5,900 6,310 4,590 6,050 6,800 3,100 5,760 6,420 3,760 6,010 6,900 3,430 5,940 6,680 6,140 8,780 11,560 7,010 10,170 11,920 6,870 9,830 11,930 7,360 10,620 11,660 7,110 10,300 11,430 6,720 10,700 11,870 6,750 11,050 11,780 6,670 10,620 11,360 8,270 10,900 12,230 5,580 10,370 11,550 6,760 10,820 12,430 6,180 10,690 12,020

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D165575 D165576 D165577 D165578 D165579 D 165608 D165609 D165610 D 165632 D 165976 D165979 D 165980 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 165985 D 175930 D 175932 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,380 6,110 6,580 3,340 6,070 6,600 3,380 5,850 6,680 3,640 5,730 6,600 3,510 6,130 6,870 4,010 5,210 6,560 3,520 5,570 6,740 4,280 5,900 6,450 4,120 5,680 6,410 4,170 5,960 6,450 4,240 5,860 6,610 3,560 5,490 6,030 6,090 10,990 11,850 6,010 10,930 11,880 6,080 10,540 12,020 6,550 10,310 11,890 6,320 11,030 12,370 7,210 9,380 11,800 6,330 10,030 12,130 7,700 10,620 11,610 7,410 10,220 11,540 7,510 10,730 11,610 7,630 10,550 11,900 6,400 9,880 10,850

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 175936 D 175938 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,140 1,165 1,195 1,110 1,140 1,180 1,140 1,165 1,195 1,150 1,175 1,205 1,105 1,140 1,180

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 178143 D1 78500 D178501C D178502C D 178503 D178505C D178506C D178510C D178511C D178512C MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,250 5,490 6,450 2,160 4,030 5,310 3,100 5,210 6,210 3,060 4,730 6,680 3,960 5,490 6,680 3,550 5,900 6,700 3,110 5,480 6,500 2,910 4,550 6,590 3,370 5,920 6,710 1,560 3,650 5,090 3,380 5,850 6,630 3,280 5,730 6,690 5,850 9,880 11,610 3,890 7,260 9,560 5,580 9,380 11,180 5,510 8,520 12,030 7,120 9,890 12,030 6,390 10,610 12,060 5,600 9,860 11,690 5,230 8,180 11,860 6,060 10,650 12,070 2,810 6,570 9,150 6,090 10,540 11,940 5,910 10,310 12,040

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 1781 43 D 178498 D 178499 D 178500 D1 78501 C D178502C D 178503 D178505C D178506C D 1785 07 D 178508 D178510C D178511C D178512C D 179369 AIR-DRIED LOSS SULFATE FORMS OF SULFUR ASH FUSION TEMPERATURE, C FREE INITIAL PYRITIC ORGANIC SWELLING DEFORMATION SOFTENING FLUID INDEX 1,115 1,075 1,215 1,125 1,105 1,125 1,240 1,055 1,285 1,145 1,205 1,200 1,190 1,240 1,115 1,130 1,245 1,265 1,195 1,300 1,155 1,190 1,180 1,215 1,315 1,315 1,330 1,380 1,335 1,350 1,180 1,215 1,255 1,275 1,230 1,250

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 179370 D 179371 D 179372 D 179373 D 179374 D 179376 D 179377 D 179378 D 179379 D 179380 D 179381 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,400 5,710 6,670 3,540 5,900 6,680 3,260 5,620 6,630 3,080 5,430 6,620 3,430 5,730 6,600 3,190 5,140 6,520 3,530 5,800 6,600 3,280 6,000 6,640 3,140 5,820 6,690 3,480 6,110 6,660 3,360 5,780 6,600 3,550 5,800 6,540 6,120 10,290 12,000 6,380 10,620 12,020 5,870 10,120 11,930 5,540 9,770 11,910 6,180 10,320 11,880 5,750 9,260 11,730 6,360 10,440 11,890 5,900 10,810 11,940 5,650 10,480 12,050 6,260 11,000 11,990 6,050 10,400 11,890 6,390 10,440 1 1 , 770

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 179370 D 179371 D 179372 D 179373 D 179374 D 179376 D 179377 D 179378 D 179379 D 179380 D 179381 AIR-DRIED LOSS FORMS OF SULFUR ASH FUSION TEMPERATURE, C FREE INITIAL SULFATE PYRITIC ORGANIC SWELLING DEFORMATION SOFTENING FLUID INDEX 1,110 1,170 1,215 1,260 1,100 1,155 1,100 1,150 1,195 1,240 1,080 1,120 1,090 1,145 1,120 1,180 1,125 1,175 1,225 1,280 1,175 1,215 1,175 1,225 1,195 1,315 1,190 1,175 1,255 1,155 1,170 1,215 1,195 1,300 1,250 1,270

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 179382 D 179383 D 179384 D180007 D180008 D 180009 D180010 D180011 D180012 D180013 D1800H D180015 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,520 6,160 6,580 3,170 5,990 6,650 3,100 5,890 6,680 3,530 5,690 6,500 3,490 5,830 6,550 3,470 5,830 6,520 3,500 5,930 6,530 3,510 5,840 6,540 3,580 5,760 6,420 3,440 5,260 6,410 3,400 5,750 6,500 3,560 5,740 6,470 6,340 11,080 11,850 5,710 10,770 11,970 5,580 10,610 12,030 6,360 10,240 11,690 6,290 10,500 11,800 6,250 10,500 11,740 6,300 10,680 11,760 6,310 10,500 11,780 6,450 10,360 11,550 6,200 9,470 11,540 6,120 10,350 11,690 6,410 10,330 11,640

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 179382 D 179383 D 179384 D 180009 D180010 D180011 D180012 D180014 D180015 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,275 1,320 1,345 1,195 1,255 1,295 1,440 1,505 1,540 1,125 1,190 1,220 1,125 1,185 1,240 1,160 1,215 1,270 1,120 1,175 1,235 1,260 1,320 1,360 1,175 1,240 1,280 1,130 1,180 1,240 1,200 1,270 1,325 1,155 1,230 1,290

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D180016 D180017 D180018 D180019 D180075 D 180076 D180079 D 180080 D 180083 D186051 D186052 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,420 5,670 6,490 3,400 5,660 6,470 3,470 5,850 6,480 3,390 5,670 6,480 3,460 6,160 6,710 3,190 5,700 6,680 3,180 5,950 6,680 3,310 5,950 6,580 3,370 6,090 6,640 3,190 5,730 6,530 4,030 6,160 6,700 3,800 6,210 6,770 6,150 10,200 11,690 6,120 10,190 11,650 6,240 10,520 11,660 6,100 10,210 11,660 6,230 11,090 12,070 5,750 10,270 12,030 5,720 10,710 12,020 5,950 10,700 11,850 6,060 10,960 11,950 5,740 10,310 11,760 7,260 11,090 12,050 6,850 11,170 12,190

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D180016 01 8001 7 D180018 D 180083 AIR-DRIED LOSS ' SULFATE .Ok! FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING 1,175 1,235 1,240 1,305 1,205 1,270 1,150 1,215 1,320 1,370 1,265 1,305 1,100 1,175 1,325 1,375 1,320 1,380 1,220 1,275 1,155 1,215 1,270 1,325 FLUID 1,295 1,350 1,330 1,280 1,400 1,330 1,205 1,405 1,425 1,310 1,270 1,380

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER MOISTURE D 186053 D186054C D186055C D 165992 D 196052 D 196056 D 196057 D 196058 D 196059 PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,660 6,130 6,850 3,610 5,830 6,720 2,460 4,200 4,980 2,920 4,770 5,320 3,730 6,050 6,740 3,640 5,900 6,740 3,690 6,170 6,800 3,650 6,030 6,630 3,750 6,200 6,690 3,620 5,990 6,760 3,740 6,200 6,850 3,720 5,790 6,770 6,590 11,030 12,320 6,500 10,490 12,090 4,420 7,560 8,970 5,260 8,590 9,580 6,710 10,890 12,130 6,550 10,620 12,130 6,640 11,110 12,240 6,570 10,860 11,930 6,740 11,160 12,040 6,510 10,780 12,170 6,740 11,150 12,340 6,700 10,420 12,180

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 186053 D186054C D186055C D 165992 D 165993 D 196052 D 196053 D 196054 D 196055 D 196056 D 196057 D 196058 D 196059 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,235 1,290 1,345 1,170 1,220 1,270 1,155 1,210 1,265 1,125 1,180 1,235 1,125 1,180 1,235 1,325 1,380 1,435 1,345 1,400 1,455 1,125 1,180 1,235 1,155 1,215 1,270 1,095 1,155 1,210

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 196060 D 196061 D 196062 D 196075 D 196076 D 196077 D 196078 D 196079 D 196080 D 196081 D 194858 D 194859 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,920 5,930 6,780 3,730 6,010 6,670 3,590 5,810 6,660 2,490 3,530 6,230 3,740 5,690 6,630 2,710 4,290 6,050 3,420 5,840 6,620 3,250 4,610 6,320 3,360 5,200 6,580 3,750 5,800 6,680 3,680 5,390 6,390 3,700 5,640 6,520 7,060 10,670 12,200 6,720 10,820 12,000 6,470 10,450 11,980 4,490 6,350 11,210 6,730 10,250 11,930 4,880 7,720 10,890 6,160 10,520 11,920 5,850 8,300 11,380 6,040 9,370 11,850 6,740 10,440 12,020 6,620 9,690 11,490 6,650 10,160 11,740

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 196060 D 196061 D 196062 D 196075 D 196076 D 196077 D 1960 78 D 196079 D 196080 D196081 D 194858 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING 1,095 1,155 1,100 1,150 1,100 1,150 1,140 1,165 1,105 1,120 1,195 1,220 1,190 1,210 1,075 1,095 1,150 1,175 1,130 1,150 1,150 1,165 1,140 1,150 FLUID 1,205 1,215 1,215 1,275 1,140 1,250 1,230 1,110 1,200 1,165 1,180 1,165

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 194860 D 194861 D 194862 D 194863 D 194864 D 194865 D 194866 D 194867 D 194868 D 194869 D 194870 D 194029 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,480 5,050 6,410 3,620 5,710 6,540 3,770 5,750 6,490 3,740 5,820 6,570 3,430 4,890 6,570 3,770 5,890 6,600 3,420 4,730 6,460 3,860 5,860 6,540 3,960 6,090 6,540 3,730 5,870 6,610 3,600 5,770 6,630 3,870 5,780 6,470 6,270 9,100 11,550 6,510 10,270 11,770 6,780 10,360 11,670 6,730 10,470 11,830 6,170 8,810 11,830 6,790 10,600 11,880 6,160 8,510 11,630 6,950 10,540 11,780 7,140 10,960 11,770 6,710 10,570 11,900 6,480 10,380 11,930 6,970 10,410 11,650

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Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D194030 AIR-DRIED LOSS SULFATE rowMs or PYRITIC suiruK FREE ORGANIC SWELLING INDEX ASH IUSION ILMI'CKAIUKl, C INITIAL DEFORMATION SOFTENING FLUID 1,110 1,140 1,165 1,065 1,080 1,120 1,170 1,200 1,225 1,260 1,290 1,315 1,200 1,255 1,400 1,060 1,090 1,165 1,295 1,315 1,340 1,165 1,195 1,240 1,245 1,265 1,290 1,290 1,305 1,320 1,130 1,160 1,190 1,240 1,255 1,270

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 196629 D 196632 D 196633 D 196635 D 196638 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAl/KG BTU/LB 3,610 5,930 6,670 3,720 5,040 5,690 3,780 5,850 6,610 3,430 5,690 6,560 3,420 5,720 6,510 1,460 2,310 2,910 3,470 5,580 6,480 3,520 5,630 6,560 2,810 4,970 6,280 3,280 5,520 6,390 3,320 5,580 6,530 3,340 5,660 6,480 6,490 10,680 12,000 6,700 9,080 10,240 6,800 10,520 11,900 6,170 10,240 11,800 6,150 10,300 11,710 2,630 4,170 5,240 6,250 10,050 11,660 6,340 10,140 11,800 5,060 8,950 11,300 5,900 9,930 11,500 5,980 10,050 11,750 6,020 10,180 11,660

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 196629 D 196630 D196631 D 196632 D 196633 D 196634 D 19663 5 D 196636 D 19663 7 D 196638 D 196639 D 196640 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,240 1,255 1,270 1,220 1,250 1,275 1,165 1,180 1,210 1,115 1,140 1,160 1,140 1,165 1,220 1,105 1,130 1,190 1,165 1,180 1,200 1,145 1,165 1,190 1,165 1,180 1,200 1,255 1,270 1,290 1,220 1,240 1,255 1,220 1,230 1,250

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D221097 D221098 D221099 D221100 D221101 D221102 D221103 D221105 D221106 D2 13983 D213984 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMUUSTION KCAL/KG BTU/LB 4,120 6,200 6,860 4,230 5,920 6,890 4,220 6,200 6,980 4,190 5,700 6,840 3,710 5,200 6,830 4,120 6,140 6,810 4,390 6,060 6,930 2,350 3,660 5,090 4,330 5,990 6,870 4,400 6,280 6,870 3,450 6,020 6,650 2,950 5,000 6,410 7,410 11,160 12,350 7,610 10,650 12,410 7,600 11,160 12,570 7,550 10,260 12,310 6,680 9,360 12,290 7,410 11,050 12,250 7,900 10,910 12,480 4,230 6,620 9,160 7,790 10,780 12,370 7,920 11,310 12,370 6,220 10,830 11,980 5,320 8,990 11,530

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Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D240982 D240983 D240985 D240986 D240987 D240988 D240989 D240990 D240992 D2 10367

Air-Dried Loss

Sulfate Forms Of Pyritic Sulfur Free Organic Swelling

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Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D188118C D188119C D188120 D188121 D188122 D188123 D188124 D188125 D 1881 26 D 1881 27 D 1881 28 D188129 MOISTURE 36. A PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH r -- HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,670 5,770 6,520 3,630 5,860 6,500 3,800 6,050 6,630 3,720 6,000 6,590 3,680 5,650 6,630 3,860 5,980 6,750 3,260 5,670 6,050 3,860 6,140 6,580 3,470 5,910 6,590 3,330 5,480 6,300 3,510 5,660 6,450 3,380 5,490 6,360 6,610 10,390 11,730 6,530 10,540 11,690 6,840 10,890 11,940 6,690 10,790 11,860 6,630 10,180 11,940 6,940 10,760 12,160 5,880 10,200 10,880 6,950 11,050 11,840 6,250 10,640 11,850 5,990 9,870 11,340 6,310 10,200 11,600 6,080 9,870 11,460

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Table Id. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D188131 D188132 D188133 D188134 D188135 D188136 D188137 01 881 38 D188HO D188141 D188142C D188H3C AIR-DRIED LOSS

SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,075 1,130 1,190 1,075 1,125 1,180 1,155 1,205 1,255 1,130 1,180 1,235

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D188U5 01 8925 7 D 189263 D 196643 MOISTURE PROXIMATE ANALYSIS VOLATILE FIXED MATTER CARBON ASH HYDROGEN ULTIMATE ANALYSIS CARBON NITROGEN OXYGEN SULFUR HEAT OF COMBUSTION KCAL/KG BTU/LB 3,610 5,970 6,680 3,500 5,630 6,840 3,800 5,850 6,490 3,900 6,000 6,500 3,860 5,910 6,500 3,760 5,840 6,420 3,810 5,780 6,610 3,990 6,080 6,490 3,930 5,880 6,410 4,090 6,200 6,710 3,440 5,420 6,460 3,430 5,390 6,460 6,500 10,750 12,030 6,300 10,140 12,320 6,840 10,530 11,680 7,020 10,810 11,710 6,950 10,630 11,710 6,770 10,520 11,560 6,860 10,410 11,890 7,180 10,940 11,690 7,080 10,590 11,530 7,350 11,160 12,070 6,200 9,750 11,630 6,180 11,630

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Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D 196645 D 196646 D 196650 D 196651 D 19665 2 D 196653 D 196654 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,100 1,120 1,190 1,190 1,205 1,220 1,045 1,060 1,075 1,180 1,200 1,215 1,215 1,230 1,250 1,250 1,275 1,305 1,165 1,175 1,195 1,175 1,195 1,210 1,190 1,205 1,225 1,170 1,200 1,320 1,150 1,165 1,180 1,160 1,175 1,195

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Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. PROXIMATE ANALYSIS SAMPLE VOLATILE FIXED NUMBER MOISTURE MATTER CARBON ASH ULTIMATE ANALYSIS HEAT OF COMBUSTION HYDROGEN CARBON NITROGEN OXYGEN SULFUR KCAL/KG BTU/LB D221133 D221134 D221138 D221140 D221141 D221142 D221143 D221145 D209953 D 209954 D209955 4,250 5,620 6,550 4,010 5,400 6,460 3,600 5,790 6,600 3,600 5,560 6,750 3,930 5,690 6,590 3,030 4,590 6,620 4,600 5,860 6,640 4,030 5,070 6,580 3,470 5,470 6,750 3,900 5,940 6,810 3,840 5,950 6,770 3,780 5,540 6,730 7,650 10,110 11,790 7,220 9,730 11,620 6,480 10,430 11,880 6,480 10,020 12,160 7,080 10,240 11,850 5,450 8,250 11,920 8,290 10,560 11,960 7,260 9,120 11,850 6,250 9,850 12,150 7,020 10,690 12,250 6,920 10,710 12,180 6,800 9,980 12,110

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D221133 D221134 D221138 D221139 D221UO D221H1 0221H2 D221U3 D2211/.5 D209953 D209954 D209955 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,130 1,200 1,260 1,095 1,120 1,150 1,180 1,230 1,280 1,120 1,155 1,230 1,120 1,150 1,175 1,060 1,110 1,170 1,190 1,240 1,280 1,070 1,125 1,170 1,125 1,175 1,245 1,095 1,155 1,200 1,120 1,190 1,250 1,045 1,105 1,170

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. PROXIMATE ANALYSIS SAMPLE VOLATILE FIXED NUMBER CARBON ULTIMATE ANALYSIS HEAT OF COMBUSTION ASH HYDROGEN CARBON NITROGEN OXYGEN SULFUR KCAL/KG BTU/LB D209956 D209957 D209958 D209960 D209962 D209963 D209965 3,610 5,360 6,650 3,580 5,560 6,720 3,800 5,880 6,590 3,710 5,740 6,700 3,980 6,060 6,660 3,700 5,810 6,680 3,560 5,450 6,740 3,710 5,830 6,620 3,470 5,420 6,600 3,670 5,760 6,620 3,050 4,600 6,510 2,930 4,100 6,430 6,500 9,660 11,970 6,450 10,010 12,100 6,840 10,580 11,860 6,670 10,340 12,060 7,170 10,920 11,990 6,660 10,450 12,020 6,410 9,810 12,130 6,690 10,500 11,920 6,250 9,750 11,880 6,610 10,370 11,920 5,490 8,290 11,710 5,280 7,380 11,570

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D209957 D209960 D 2 09962 D209963 D209964 D209965 D209966 AIR-DRIED LOSS , SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,110 1,175 1,245 1,155 1,220 1,270 1,140 1,190 1,250 1,045 1,105 1,155 1,205 1,255 1,300 1,070 1,130 1,180 1,030 1,000 1,130 1,045 1,160 1,210 1,000 1,145 1,195 1,180 1,250 1,295 1,225 1,290 1,340 1,160 1,210 1,270

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. PROXIMATE ANALYSIS SAMPLE VOLATILE FIXED NUMBER MOISTURE MATTER CARBON ASH ULTIMATE ANALYSIS HEAT OF COMBUSTION HYDROGEN CARBON NITROGEN OXYGEN SULFUR KCAL/KG BTU/LB D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 15.7' 3,470 5,090 6,620 3,470 5,980 6,740 3,390 5,690 6,660 3,570 6,150 6,640 3,630 6,130 6,630 3,430 5,910 6,530 3,430 6,030 6,610 3,480 6,000 6,670 3,370 5,960 6,650 3,540 6,110 6,690 3,470 5,550 6,680 3,530 5,870 6,690 6,250 9,170 11,920 6,250 10,760 12,140 6,100 10,250 11,990 6,430 11,060 11,960 6,530 11,040 11,930 6,180 10,630 11,760 6,180 10,860 11,910 6,260 10,810 12,010 6,070 10,720 11,970 6,370 10,990 12,040 6,240 9,980 12,030 6,350 10,570 12,040

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE NUMBER D240927 D240935 D240936 AIR-DRIED LOSS SULFATE FORMS OF PYRITIC SULFUR FREE ORGANIC SWELLING INDEX ASH FUSION TEMPERATURE, C INITIAL DEFORMATION SOFTENING FLUID 1,095 1,155 1,205 1,270 1,320 1,340 1,155 1,215 1,255 1,340 1,400 1,420 1,340 1,405 1,430 1,325 1,375 1,400 1,295 1,360 1,375 1,315 1,355 1,370 1,315 1,365 1,375 1,275 1,355 1,370 1,230 1,295 1,370 1,315 1,355 1,370

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. SAMPLE VOLATILE FIXED NUMBER MOISTURE MATTER CARBON PROXIMATE ANALYSIS ULTIMATE ANALYSIS HEAT OF COMBUSTION ASH HYDROGEN CARBON NITROGEN OXYGEN SULFUR KCAL/KG BTU/LB D240938 D240939 D240940 D240941 A. 2 3,680 6,050 6,630 3,850 5,820 6,730 3,730 5,970 6,570 3,590 5,910 6,530 6,620 10,890 11,940 6,930 10,480 12,110 6,720 10,740 11,820 6,460 10,640 11,750

Table 1d. (cont'd.) Proximate and ultimate analyses, heat content, forms of sulfur, free-swelling index, and ash-fusion temperatures. FORMS OF SULFUR SAMPLE AIR-DRIED FREE NUMBER LOSS SULFATE PYRITIC ORGANIC SWELLING

INDEX INITIAL DEFORMATION ASH FUSION TEMPERATURE, C SOFTENING FLUID D240938 D240939 D240940 D240941 1,340 1,150 1,290 1,260 1,390 1,200 1,345 1,315 1,405 1,220 1,355 1,340

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Table le. (cont'd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179377 D 179378 D 179379 D 179380 D 179381 D 179382 D 179383 D 179384 D 180007 D 180008 D 180009 D 180010 D 18001 2 D180013 D1800U D 18001 5 D180016 D180017 D180018 ASH SI02 AL203 CAO MGO NA20 K20 FE203 TI02 B P205 S03 SAMPLE NUMBER D 179375 D 179376 D 179378 D180012

Table 1e. (contd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196054 D 196061 D 196062 D 196075 D 196078 D 196079 D 196080 D194861 D 194869 D 194034 ASH SI02 AL203 CAO MGO NA20 K20 FE203 TI02 B P205 S03 SAMPLE NUMBER D 196053

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Table 1e. (cont'd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D2 13996 D213997 D213998 D213999 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 196404 D 196406 D 196407 D210365 D210368 D210369 D210371 D210372 D218907 D210366 D210370 D 196593 ASH SI02 B B B B AL203 B B B CAO B B B B MGO NA20 K20 B B B FE203 B B B TI02 B B B B P205 S03 B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B SAMPLE NUMBER D218907

Table 1e. (cont'd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D240986 D240988 D240989 D240990 D240991 D 165762 D 165764 D 165766 D 178086 D 178087 D 178088 D 188 120 D 188 123 D 188 124 ASH SI02 H AL203 H U CAO H MGO NA20 K20 H FE203 H TI02 H B B B B B B B B B B B B B B B B P205 S03 B B B B B B B B B SAMPLE NUMBER D2 10367 D 175972 D165751 D 178086 D188118 D 188 120

Table 1e. (cont'd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D188127 01 881 28 01 88 129 D 1881 30 D188137 D 189260 D 189261 D 196646 ASH SI02 AL203 CAO MGO NA20 K20 FE203 TI02 P205 S03 SAMPLE NUMBER D 189260

Table 1e. (cont'd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196657 D 196659 D196662 D196641 022 11 29 D221140 D 209955 D209956 D209957 ASH SI02 AL203 CAO MGO NA20 K20 FE203 TI02 P205 S03 B B B B B B B B B B B B B B B B B B B B B B B B B B B B B SAMPLE NUMBER D221140 D 196598 D209954 D209957 D209958 D209959

Table 1e. (cont'd.) Major- and minor- oxides in the laboratory ash of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D209961 D209962 D209963 D209965 D209966 D209967 D209968 D240927 D240928 D240930 D240935 ASH SI02 AL203 CAO

MGO NA20 K20 FE203 TI02 P205 S03 B B B B B B B B B B B B B B B B B B B B B B B SAMPLE NUMBER

Table 1f. Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region- North Dakota and Montana. [Values in percent or parts-per-million. Elements not determined on whole coal (figure 3) have been calculated from analyses of ash. S analysis by six-step emission spectrography; L, less than the value shown; H, interference for an element which cannot be resolved by any routine method; B, not determined; G, greater than; N not detected.] SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B AG-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N AS (PPM) SAMPLE NUMBER

Table 1f. (cont'd.) Major-, minor-, and trace element-concentrat ions of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165 5 64 D165565 D 165567 D 165569 D165570 D165571 D1 65572 D165573 D 165574 D 165575 D 165576 D165577 D 165578 D 165579 D165613 D 165975 B-S (PPM) BA-S (PPM) 1,300 2,300 1,000 1,000 BE-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N CD CE (PPM) (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B CO (PPM) N N N N N N N N N N N N CR (PPM) CU (PPM) DY-S (PPM) N B B B B B B B B N N N B N B B B B B B B B B B B B N N B B B B B B B B B B B B SAMPLE NUMBER D165567

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165574 D165575 D165576 D165577 EU (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N F (PPM) GA-S (PPM) B B B GO-S (PPM) N B B B B B B B B N N N B N B B B B B B B B B B B B N N B B B B B B B B B B B B GE-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D165572 D165577 D165613

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165565 D 165 566 D 165567 D 165568 D 165569 D 165570 D165571 D 165572 D165573 D 165575 D 165576 D 165577 D 165578 D1655F9 D1656C5 D165607 D 165608 D 165609 D 165610 D 165611 D 16561 2 D165613 D 165632 D 165974 D 165975 D 165976 MO-S (PPM) 1,5 N N N N NB-S (PPM) N N N N N N N N N N M N n N N N N N N N N H N N N N N N N N N N ND-S (PPM) N N N N N N N N N N N N N N N N K N N N N N N N N N H N N N N N N N N N N N N NI-S (PPM) Z.I ,69 N P (PPM) PB (PPM) SB (PPM) ,rn sc (PPM) N N N N N N H N N N N N N SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N H U n N N N N N N H N N H H N N N N N N N N N N N N SAMPLE NUMBER D165610 D165613 D 165975

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165564 D 165565 D 165566 D 165567 D 165 568 D 165569 D 165570 D165571 D165572 D165573 D 165574 D 165575 D165576 D165577 D165578 D165579 D 165605 D165606 D 165607 D 165608 D165609 D165610 D 165611 D165612 D 165632 D 165976 D 165977 D 165978 D 165979 D 165980 D 165981 D165982 D 165983 D 165984 D 165985 D 165986 D 165987 SR-S (PPM) 1,300 1,200 TH (PPM) N N N N N N N N N N N N N N N N N N N N N N N N TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) V-S (PPM) U (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) N N N N N YB (PPM) B N N B B N N N N B N ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D165564 D165565 D165566 D165567 D165568 D 165569 D 165570 D165571 D 165572 D165573 D 165574 D165575 D165576 D165577 D165578 D165579 D 165605 D165606 D 165607 D 165608 D 165609 D 165610 D165611 D 16561 2 D 165632 D 165974 D 165976 D 165977 D 165978 D 165979 D 165980 D 165981 D165982 D 165983 D 165984 D165985 D165986 D 165987

Table 1f. (cont'd.) Major-, minor-, and trace- element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) D 165988 D 165989 D 165990 D165991 D 173466 D 173467 D 173468 D 173469 D 175930 D1 75931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 175939 D 1781 43 D 1781 44 D178145 D 178498 D178499 D 178500 D 178502 D 178503 D 178505 D 178506 D 178507 D 178508 D 178509 D178510 D178511 D 17851 2 D 179369 D 179370 D 179371 D 179372 - NA

FE TI (Pfc'RCENT) (PERCENT) (PERCENT) (PERCENT) ' 0.17 B B B B AG-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N AS (PPM) SAMPLE NUMBER D 165988 D 165989 D 165990 D 165991 D 173466 D 173467 D 173468 D 173469 D 175930 D175931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 175938 D 175939 D 1781 43 D 1781 44 D 1781 45 D 178498 D178499 D 178500 D 178502 D178503 D 178505 D 178508 D 178509 D178510 D178511 D178512 D 179369 D 179370 D 179371 D 179372

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165988 D 165989 D 165990 D165991 D 173466 D 173467 D 173468 D 173469 D 175930 D175931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 175938 D 175939 D 1781 43 D 1781 44 D 1781 45 D 178498 D 178499 D 178500 D 1785 01 D 178502 D 1785 03 D 178504 D 178505 D 178507 D 178508 D 178509 D178510 D178511 D178512 D 179369 D 179370 D 179371 B-S (PPM) BA-S (PPM) 1,100 5,600 BE-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N CD (PPM) CE (PPM) B B B B N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B CO (PPM) N N N N N N N N N CR (PPM) CU (PPM) DY-S (PPM) B B B B B B B B B B B B B B B B B B N B B N B B N B N N B N N N N B B B B B B SAMPLE NUMBER D 165988 D 165989 D 165990 D 165991 D 173466 D 173467 D 173468 D 173469 D 175930 D175931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 175938 D 175939 D 1781 43 D178144 D 1781 45 D 178498 D 178499 D 178500 D 178501 D1 78502 D 178503 D 178504 D 178505 D 178506 D 178507 D 178508 D 178509 D178510 D178511 D178512 D 179369 D 179370 D 179371 D 179372

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165990 D 173469 D 175930 D 175934 D 175935 D 175936 D 178502 D 178503 D 178506 D 178507 D178510 D178511 D 179370 EU (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N F (PPM) GA-S (PPM) B B B GD-S (PPM) B B B B B B B B B B B B B B B B B B N B B N B B N B N N B N N N N N B B B B B B GE-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D 173469 D 175936 01 785 04 D178510 D178512

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165988 D 165989 D 165990 D165991 D 173466 D 173467 D 173468 D 173469 D 175930 D175931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 175938 D 175939 D1 78143 D1 78144 D178145 D 178498 D 178499 D 178500 D 178501 D 178502 D 178503 D 178504 D 178505 D 178506 D 178507 D 178508 D 178509 D178510 D178511 D178512 D 179369 D 179370 D 179371 D 179372 MO-S (PPM) N NB-S (PPM) N N N N N N N N N N N N N N N N N ND-S (PPM) N N N N B B B B B B N B N N B B N N N N B B B B B B B B B B B B B B B B B B NI-S (PPM) N P (PPM) 1,OOOL 1,OOOL 1,200L PB (PPM) SB (PPM) SC (PPM) N N N N SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D 165988 D 165989 D 165990 D165991 D 173466 D 173467 D 173468 D 173469 D 175930 D175931 D 175932 D 175933 D 175934 D 175935 D 175936 D 175937 D 178499 D1 78506

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 1781 45 D 178502 D 178505 D 178506 SR-S (PPM) TH (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM)

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Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) B AG-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N AS (PPM) B SAMPLE NUMBER D 186053

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Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179378 D 179380 D179381 D 179382 D 179384 D 180007 D 180008 D 180009 D180010 D180011 D 1800 12 D180013 D180014 D180015 D 18001 6 D180017 D180018 D180019 D 180075 D 180076 D1 80077 D1 80078 D1 80079 D 180080 D 180081 D 180082 D 180083 D 18605 2 D186053 D 186054 D 186055 D 165992 EU (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N F (PPM) GA-S (PPM) GD-S (PPM) B B N B N B B N B B B B B B B B N N N N N B N N B B B N B B B N N B N N B B N B GE-S CPPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179377 D 179378 D 179379 D 179380 D 179381 D 179382 D 179383 D 179384 D 180007 D 180008 D 180009 D 1800 10 D 180011 D 18001 2 D180013 D 1800 14 D 18001 5 D180016 D 18001 7 D180018 D 1800 19 D 180075 D 180076 D 180077 D 180078 D 180079 D 180080 D 180081 D 180082 D186051 D 186052 D 186053 D 186054 D 165992

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 179373 D 179374 D1 79375 D 179376 D 179377 D 179378 D 179379 D 179380 D1 79381 D 179383 D 179384 D 180007 D 180008 D 180009 D180010 D180011 D180012 D180013 D180014 D180015 D180016 D180017 D180018 D180019 D 180075 D 180076 D180077 D 180078 D 180079 D180081 D180082 D 180083 D 186051 D 186052 D 186053 D 186054 D 186055 D 165992 MO-S CPPM) N N NB-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N ND-S (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B N B B B B N B N N N N B N NI-S (PPM) P (PPM) PB (PPM) SB (PPM) SC (PPM? N N N SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179377 D 179378 D 179379 D 179380 D 179382 D 179383 D 179384 D 180007 D180008 D180009 D180011 D180013 D180014 D180017 D180018 D180019 D180075

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D1 79377 D 179378 D 179379 D 179380 D 179381 D 179382 D 179383 D 179384 D180007 D180008 D 180009 D180010 D180011 D180012 D180013 D180014 D 1800 15 D180016 D180017 D180018 D180019 D180075 D 180076 D 180078 D 180079 D 180080 D 180081 D 180082 D 180083 D186051 D 186052 D186053 D 186054 D 186055 D 165992 SR-S (PPM) TH (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) V-S (PPM) W (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) N N YB (PPM) B B B B B B N ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D 179373 D 179374 D 179375 D 179376 D 179377 D 179378 D 179379 D 179380 D 179381 D 179382 D 179383 D 179384 D180007 D 180008 D 180009 D180010 D180011 D180012 D180013 D180014 D180015 D180016 D180017 D180018 D180019 D180075 D 180076 D180077 D 180078 D180079 D 180080 D 180082 D 180083 D186051 D 186052 D186053 D186054 D186055 D 165992

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) D 165993 D 196052 D 196053 D 196054 D 196055 D 196056 D 196057 D 196058 D 196059 D 196060 D 196061 D 196062 D 196075 D 196076 D 196077 D 196078 D 196079 D196080 D 196081 D 194858 D 194859 D 194860 D194861 D 194862 D1 94863 D 194864 D1 94865 D 194866 D 194867 D 194868 D 194869 D 194870 D194029 D194030 D 194031 D 194032 D 194033 D 194034 D 194035 D 194036 B AG-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N AS (PPM) SAMPLE NUMBER D 165993 D196052 D 196053 D 196054 D 196055 D 196056 D196057 D 196058 D196059 D 196060 D 196061 D 196062 D196075 D196076 D 196077 D 196078 D 196079 D 196080 D196081 D 194858 D 194859 D 194860 D194861 D 194862 D 194863 D 194864 D 194865 D 194866 D 194867 D 194868 D 194869 D 194870 D 194029 D 194030 D 194031 D 194032 D 194033 D194034 D194035 D 194036

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165993 D 19605 2 D 196053 D 196054 D196055 D 196056 D 196057 D 196058 D 196059 D 196060 D 196061 D 196062 D 196075 D 196076 D 196077 D 196078 D 196079 D 196080 D196081 D 194858 D 194859 D 194860 D 194861 D 194862 D 194863 D 194864 D 194865 D 194866 D 194867 D 194868 D 194869 D 194870 D 194029 D 194030 D194031 D 194032 D 194033 D 194034 D 194035 D 194036 B-S (PPM) BA-S (PPM) 1,000 1,000 BE-S (PPM) N N N N N N N N N N N N N N CD CE (PPM) (PPM) B N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) B B B B B B B B B B B B B B B B B B B B B B CO (PPM) N CR (PPM) CU (PPM) DY-S (PPM) B B B B B N B N B N B B N B B B B B B B B B B B B B B B N N B B N B N B B B N B SAMPLE NUMBER D1 96052 D 196053 D 196054 D 196055 D 196056 D 196057 D 196058 D 196059 D 196060 D196061 D 196062 D 196075 D 196076 D 196077 D 196078 D 196079 D 196080 D 196081 D 194858 D 194859 D 194860 D 194861 D 194862 D 194863 D 194864 D 194865 D 194866 D 194867 D 194868 D 194869 D 194870 D 194029 D 194030 D 194031 D 194032 D 194033 D 194034 D 194035 D 194036

Table 1f. (cont'd.) Major-, minor-, and trace-elennt concentrations of 383 lignite samples from the Fort Union Region. SAMPLE EU NUMBER (PPM) D 165993 D 196076 N B B B B B B B B B B B N N N N N N N N N N N N N N N N N N N N N N N N N N N N F (PPM) GA-S (PPM) B B B GD-S (PPM) B B B B B N B N B N B B N B B B B B B B B B B B B B B B N N B B N B N B B B N B GE-S iPPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) MM (PPM) SAMPLE NUMBER D 196059 D 196060 D 194869 D 194870 D 194029 D194035

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165993 D 196052 D 196053 D 196054 D1 96055 D1 96056 D 196057 D 196058 D1 96059 D 196060 D196061 D1 96062 D 196075 D 196077 D 196079 D 196080 D 196081 D 194858 D 194859 D 194860 D 194861 D 194862 D 194863 D 194864 D 194865 D1 94866 D 194867 D 194868 D 194869 D 194870 D194029 D 194030 D 194032 MO-S (PPM) N N N NB-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N ND-S (PPM) N B B B B B B B B B B B N B N B N B B B B B B B B B B B B B B B N B B B B B B B NI-S (PPM) P (PPM) 1,400L 5,10 3,801 1,500L PB (PPM) SB (PPM) SC (PPM) N N SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 165993 D196052 D 196053 D 196054 D 196055 D 196056 D1 96057 D 196058 D 196059 D 196060 D 196061 D 196062 D 196075 D 196076 D 196077 D 196078 D 196079 D 196080 D 196081 D 194858 D 194859 D 194860 D 194861 D 194862 D 194863 D 194864 D 194865 D 194866 D 194867 D 194868 D 194869 D 194870 D 194029 D 194030 D 194031 D 194032 D 194033 D 194034 D 194035 D 194036 SR-S (PPM) TH (PPM) N TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) V-S (PPM) W (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) N YB (PPM) N B B B N ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D 165993 D 196052 D 196053 D 196054 D 196055 D 196056 D196057 D 196058 D 196059 D 196060 D 196061 D 196062 D 196075 D 196076 D 196077 D 196078 D 196079 D 196080 D 196081 D 194858 D 194859 D 194860 D194861 D 194862 D 194863 D 194864 D 194865 D 194866 D 194867 D 194868 D 194869 D 194870 D 194029 D 194030 D 194031 D 194032 D 194033 D 194034 D 194035 D 194036

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) D 196625 D 196627 D213989 AG-S AS (PPM) (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N B B B B B B B B B B B B B SAMPLE NUMBER D213990

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196624 D 196625 D 196626 D 196627 D 196628 D 196629 D 196630 D196631 D 196632 D 196633 D 196634 D 196635 D 196636 D 196637 D 196638 D 196639 D 196640 D221097 D221098 D221099 D221100 D221101 D221102 D221103 D221104 D221105 D221106 D213983 D213984 D213985 D213986 D213988 D213989 D213990 D213991 D213992 D213993 D213994 D213995 B-S (PPM) BA-S (PPM) 5,800 12,OOOG 1,200 1,600 1,400 1,100 1,700 1,100 1,200 BE-S (PPM) N N N N CD (PPM) CE (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) CO (PPM) CR (PPM) CU (PPM) DY-S (PPM) N N N N B N N N B B N B B B B B B N N N N N N N N N N B B B SAMPLE NUMBER D 196624 D 196625 D 196626 D 196627 D 196628 D 196629 D 196630 D196631 D 196632 D 196633 D 196634 D 196635 D 196636 D 196637 D 196638 D 196639 D 196640 D221097 D221098 D221099 D221100 D221101 D221102 D221103 D 22 11 04 D221105 D221106 D213983 D213984 D213985 D213986 D213987 D213988 D213989 D213990 D213991 D213992 D213993 D213994 D213995

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196624 D 196625 D 196626 D 196627 D 196629 D 196630 D196631 D 196632 D 196633 D 196634 D 196635 D 196636 D 196637 D 196638 D 196639 D 196640 D221097 D221098 D221099 D221100 D221101 D221102 D221103 D221104 D221105 D221106 D2 13983 D213984 D213985 D213986 D213987 D 21 3988 D213989 D213990 D213991 D213992 D213993 D2 13994 D213995 EU (PPM) B B B B B B B B B B B B B B B B B N B B B B B B B B B B B B F (PPM) GA-S (PPM) GD-S (PPM) N N N N B N N N B B N B B B B B B N N N N N N N N N N B B B GE-S (PPM) N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D 196624 D 196625 D 196626 D 196627 D 196628 D 196629 D 196630 D 196631 D 196632 D 196633 D 196634 D 196635 D 196636 D 196637 D 196638 D 196639 D 196640 D221097 D221098 D221099 D221100 D221101 D221102 D221103 D221104 D221105 D 22 11 06 D213983 D213984 D213985 D213986 D213987 D213988 D213989 D213990 D213991 D213992 D213993 D213994 D213995

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D196624 D196627 D 196633 D196635 D196637 D221097 D221100 D221101 D221102 D221106 D213984 D213985 D213986 D213989 D213990 D213991 D2 13992 D2 13993 D213994 MO-S CPPM) NB-S (PPM) N N N N N ND-S (PPM) B B B B B B B B B B B B B B B B B N B B B B B B B B B B B B NI-S (PPM) P (PPM) PB (PPM) SB (PPM) SC (PPM) SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D 196639 D 196640 D221100 D221101 D221104 D2 13985 D213990

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196626 D 196627 D 196628 D 196633 D 196634 D213984 D213989 D213990 D213993 SR-S (PPM) 570G TH (PPM) TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) V-S (PPM) U (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) YB (PPM) ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D 196634 D213989

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) D213996 D2 13997 D2 13998 D213999 D214000 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 196404 D 196405 D 196406 D 196407 D210365 D210368 D210369 D210371 D210372 D218907 D210366 D210370 D 196593 D 196594 D 196595 D196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240982 D240983 D240984 B B B B B B B B B B B B B B B B B B B B B AG-S AS (PPM) (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N B B B B B B B SAMPLE NUMBER D213996 D213997 D213998 D213999 D214000 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 196404 D 196405 D 196406 D 196407 D2 10365 D2 10368 D210369 D210371 D210372 D218907 D210366 D2 10370 D 196593 D 196594 D 196595 D 196596 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240982 D240983 D240984

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D2 13996 D213997 D2 13998 D213999 D214000 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 196404 D 196405 D 196406 D 196407 D2 10365 D2 10368 D2 10369 D210371 D210372 D218907 D2 10366 D2 10370 D 196593 D 196594 D 196595 D 196596 D 196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240982 D240983 D240984 B-S (PPM) BA-S (PPM) 1,500 1,400 2,400 1,200 1,100 1,200 BE-S (PPM) N N N N N N N CD (PPM) CE (PPM) N N N N N N B N N N N N N N N N N N N N N N N N N N N (PPM) CO (PPM) CR (PPM) CU (PPM) DY-S (PPM) N B B B N B B B B B B B B B B B B B B B N B B N B B B SAMPLE NUMBER D213996 D213997 D2 13998 D2 13999 D214000 D214001 D 196399 D 196400 D 196401 D 196402 D 196403 D 196404 D 196405 D 196406 D 196407 D2 10365 D2 10368 D2 10369 D210371 D2 10372 D2 18907 D2 10366 D2 10370 D 196593 D 196594 D 196595 D 196596 D 196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240982 D240983 D240984

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D2 13996 D213997 D213998 D213999 D214001 D 196399 D 196593 EU (PPM) B B B B B B B B B B B B B B B B B B B B N B B B B B B F (PPM) GA-S (PPM) B B B B B B B GD-S (PPM) N B B B N B B B B B B B B B B B B B B B N B B N B B B GE-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D240976

Table 1f. (cont'd.) Major-, minor-, and trace-el errant concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D213996 D213997 D213998 D213999 D214000 D214001 D 196399 D 196400 D196401 D196402 D 196403 D 196404 D 196405 D 196406 D 196407 D2 10365 D210368 D210369 D210371 D2 10372 D218907 D210366 D210370 D 196593 D 196594 D 196595 D 196596 D 196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240983 D240984 MO-S (PPM) N N N NB-S (PPM) N N N N N N N N N N N N N N N N ND-S (PPM) B B B B B B B B B B B B B B B B B B B B N B B B B B B NI-S (PPM) P (PPM) 1*0 PB (PPM) SB (PPM) SC (PPM) SE (PPM) B B SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D213996 D213997 D2 13998 D213999 D214000 D214001 D 196399 D 196400 D196401 D 196402 D1 96403 D 196404 D 196405 D 196407 D210365 D210368 D2 10369 D210371 D210372 D2 18907 D2 10366 D210370

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D213996 D213997 D213998 D213999 D214000 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 196404 D 19640 5 D 196406 D 196407 D2 10365 D2 10368 D2 10369 D210371 D2 10372 D218907 D2 10366 D2 10370 D 196593 D 196594 D 196595 D 196596 D196597 D240973 D240974 D240975 D240976 D240977 D240978 D240980 D240981 D240982 D240983 D240984 SR-S (PPM) TH (PPM) TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) ' V-S (PPM) W (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) YB (PPM) B B B B B B B B B B ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D213996 D213997 D2 13998 D213999 D2 14000 D214001 D 196399 D 196400 D196401 D 196402 D 196403 D 196404 D 196405 D 196406 D 196407 D2 10365 D2 10368 D2 10369 D210371 D210372 D218907 D210366 D2 10370 D 196593 D 196594 D 196595 D 196596 D 196597 D240973 D240974 D240975 D240976 D240977 D240978 D240979 D240980 D240981 D240982 D240983 D240984

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) D240985 D240988 D240989 D240990 D240991 D240992 D2 10367 D 175972 D 175973 D 175974 D 175975 D165751 D165752 D165753 D165754 D165755 D165756 D165757 D165758 D 165759 D165760 D 165761 D165762 D 165 763 D165764 D 165765 D 178086 D 178087 D 188 125 H H H H H H B B B B B B B B B B B B B B B B AG-S AS (PPM) (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D 188 123 D 188 125

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D2 10367 D 175972 D 175973 D 175974 D 175975 D165751 D165752 D165753 D165754 D165755 D 165756 D 165757 D165758 D165759 D 165760 D 165761 D165762 D 165763 D 165764 D 165765 D 165766 D 178086 D 178087 D 178088 D 1881 18 D188119 D 188 120 D188121 D 188 122 D 188 123 D188124 D 188 125 B-S (PPM) BA-S (PPM) 1,200 1,000 2,900 1,100 1,300 BE-S (PPM) N N N N N N N N N N N N N N N N N N N CO (PPM) CE (PPM) N N N N N B B B B B B B B B B B B B B N N N N N N N N N N N N (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B CO (PPM) N N N N N N N N N N CR (PPM) CU (PPM) DY-S (PPM) B B B B B B B B B B B B B B B B B B N B B B B B N N N N N N N N SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D210367 D 175972 D 175973 D 175974 D 175975 D165751 D165752 D 165753 D165754 D165755 D165756 D165757 D165758 D165759 D 165760 D 165761 D 165762 D 165763 D 165764 D 165765 D 165766 D 178086 D 178087 D 178088 D188118 D188119 D 1881 20 D 1881 21 D 1881 22 D 188 123 D 188 124 D 188 125

Table If. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D240987 D240989 D240990 D 165753 D165755 D165758 D 178086 D188118 D 1881 20 D 188 125 EU (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N F (PPM) GA-S (PPM) GD-S (PPM) B B B B B B B B B B B B B B B B B B N B B B B B N N N N N N N N GE-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D240989 D165757 D188119 D 188 123 D 188 125

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D2 10367 D 175972 D 175973 D 175974 D1 75975 D165751 D165752 D165753 D165754 D165755 D 165756 D165757 D165758 D165759 D 165760 D1 65761 D1 65762 D165763 D165764 D 165765 D165766 D1 78086 D188118 D188119 D 1881 20 D 1881 21 D 188 122 D 188 123 D 188 124 D 188 125 MO-S (PPM) N N NB-S (PPM) N N N N N N N N N N N N N N N N N N N N ND-S (PPM) N B B B B N N N N N N N N N N N N N N N B B B B B B B B B B B NI-S (PPM) N N N P (PPM) 1,500 1,300 1,fOO ' 690 PB (PPM) SB (PPM) SC (PPM) N N N N N N SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D210367 D 175972 D 175973 D 175974 D 175975 D165751 D 165752 D165753 D165754 D165755 D 165756 D165757 D165758 D165759 D 165760 D 165761 D165762 D 165763 D 165764 D 165765 D 165766 D 178086 D 178088 D188118 D 1881 19 D 1881 20 D188121 D 188 122 D 188 123 D 188 124 D 188 125

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D240985 D240986 D240987 D240988 D240989 D240990 D240991 D240992 D210367 D 175972 D 175973 D 175974 D 175975 D165751 D165752 D 165753 D165754 D165755 D165756 D165757 D1 65758 D 165759 D165760 D 165761 D 165762 D165763 D 165764 D 165765 D 165766 D 178086 D1 78087 D188118 D188119 D 1881 20 D188121 D188122 D188123 D 188 124 D 188 125 SR-S (PPM) TH (PPM) N N N N N N N N N N N N N N TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) V-S (PPM) U (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) N YB (PPM) B B B ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D240985 D240986 D240987 D240989 D240990 D240991 D240992 D210367 D 175972 D 175973 D1 75974 D 175975 D165751 D165752 D165753 D165754 D165755 D165756 D165757 D165758 D165759 D165760 D165761 D 165762 D 165763 D 165764 D 165765 D 165766 D1 78086 D 178087 D 178088 D188118 D188121 D 188 124

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) D 188 126 D 1881 2 7 D 188 128 D188129 D 188 130 D188131 D 1881 32 D 188 133 D 188 134 D 1881 35 D188136 D188137 D 1881 38 D188UO D188141 D188142 D188143 D188144 D188145 D 189256 D189257 D 189258 D189259 D 189260 D1 89261 D 189262 D189263 D 196643 D 196644 D 196645 D196646 D196647 D196648 D196649 D 196650 D196651 D 196652 D 196653 D 196654 D 196655 AG-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N AS (PPM) B SAMPLE NUMBER D 188 126 D188127 D 188 128 D 188 129 D 188 130 D188131 D 1881 32 D 188 133 D 188 134 D 188 135 D 188 136 D188137 D 188 138 D 1881 40 D188141 D188142 D 188 143 D 188 144 D 1881 45 D189256 D189257 D 189258 D189259 D 189260 D 189261 D189262 D 189263 D 196643 D 196644 D 196645 D196646 D 196647 D 196648 D 196649 D196650 D196651 D 196652 D 196653 D 196654 D 196655

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 188 126 D188127 D 188 128 D 188 129 D 1881 30 D188131 D188132 D 188 133 D188134 D 188 135 D 188 136 D 188 137 D 188 138 D 188 HO D188141 D188142 D 188 143 D 188 144 D 1881 45 D189256 D189257 D 189258 D 189259 D 189260 D 189261 D 189262 D 189263 D 196643 D 196644 D 196645 D 196646 D 196647 D196648 D 196649 D 196650 D196651 D 196652 D 196653 D 196654 D 196655 B-S (PPM) BA-S (PPM) 1,000 1,100 1,700 1,400 2,700 2,700 3,400 BE-S (PPM) N N N N N N N N N N N N CD CE (PPM) (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B CO (PPM) CR (PPM) CU (PPM) DY-S (PPM) N N N N N N N N N N N N N N N N N N N N B B B N B B N B B B B B N B B N B B N B SAMPLE NUMBER D 1881 26 D188127 D 1881 28 D 1881 29 D188130 D188131 D 188 132 D 188 133 D188134 D 188 135 D188136 D188137 D 188 138 D 188 140 D188141 D 1881 42 D 188 143 D 188 144 D 1881 45 D 189256 D 18925 7 D 189258 D1 89259 D 189260 D 189261 D 189262 D189263 D 196643 D 196644 D 196645 D 196646 D196647 D196648 D 196649 D 196650 D 196651 D196652 D 196653 D 196654 D196655

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D188126 D188127 D 188 128 D 1881 30 D188131 D188132 D188133 D 186 134 D 1881 35 D188136 D188137 D188138 D 188 140 D188141 D188143 D188144 D188145 D 189256 D 189257 D 189258 D189259 D 189260 D 189261 D 189262 D 189263 D 196643 D196644 EU (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N B B B B B B B B B B B B B F (PPM) GA-S (PPM) B GD-S (PPM) N N N N N N N N N N N N N N N N N N N N B B B N B B N B B B B B N B B N B B N B GE-S HF (PPM) (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D 188 126 D 188 129 D188141 01 881 42 D188143 D 189257 D189259 D 196644 D196651

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D188127 D 196653 D 196654 MO-S (PPM) N N N N NB-S (PPM) N N N N N N N N N N N N N N N N N N NO-S (PPM) B N B N B B B B B B B B B B B N N B B N B B B B B B B B B B B B B B B B B B B B NI-S (PPM) P (PPM) 3,40L PB (PPM) SB (PPM) SC (PPM) N N N N N N N SE (PPM) SN-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D 196653

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 1881 26 D188127 D 188 128 D 188 129 D 1881 30 D188131 D188132 D 188 133 D 188 134 D 1881 3 5 D 188 136 D188137 D 188 138 D188140 D188141 D 1881 42 D 188 143 D 188 144 D188145 D 189256 D 189257 D 189258 D 189259 D 189260 D 189261 D 189262 D 189263 D196643 D196644 D 196645 D 196646 D 196647 D196648 D 196649 D196650 D196651 D196652 D 196653 D 196654 D 196655 SR-S (PPM) TH (PPM) TL-S (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N U (PPM) V-S U (PPM) N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N Y-S (PPM) YB (PPM) B B B ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D 188 126 D188127 D 1881 28 D 1881 29 D 188 130 D188131 D 1881 32 D 188 133 D188134 D 188 135 D 188 136 D188137 D 188 138 D 1881 40 D188141 D 1881 42 D 188 143 D 188 144 D 1881 45 D 189256 D 189257 D 189258 D 189259 D 189260 D 189261 D 189262 D 189263 D 196643 D196644 D 196645 D 196646 D196647 D196649 D 196650

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) D221137 AG-S (PPM) N N N N N N N N N N N N N N N N N N N AS (PPM) SAMPLE NUMBER D209959

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196656 D 196657 D 196658 D 196659 D 196660 D 196661 D 196662 D 196642 D221125 D221126 D221127 D221128 D221129 D221130 D221131 D 22 11 32 D221133 D221134 D221136 D221137 D221138 D221140 D221141 D221142 D221143 D221144 D221145 D196598 D196599 D209953 D209954 D209955 D209956 D209957 D209958 D209959 D209960 B-S (PPM) BA-S (PPM) 1,100 1,500 1,400 1,900 2,000 1,400 1,600 BE-S (PPM) N CD (PPM) CE (PPM) N B N N N N N N N N N B B N N N N N B (PPM) B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B CO (PPM) CR (PPM) CU (PPM) DY-S (PPM) B N N N N B B N N B B N B B B B B N N SAMPLE NUMBER D 196656 D196657 D 196658 D196659 D 196660 D 196661 D 196662 D196641 D 196642 D221125 D221126 D221127 D221128 D221130 D221131 D 22 11 32 D221134 D221135 D 22 11 36 D221138 D221139 D221140 D221142 D221143 D221144 D221145 D196598 D 196599 D209953 D209954 D209955 D209956 D209957 D209958 D209959 D209960

Table 1f. (cont'd.) Major-, minor-, and trace-eleuient concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196656 D 196657 D 196658 D 196659 D 196660 D 196661 D196641 D 196642 D221125 D221127 D 22 11 28 D221129 D221130 D221131 D221132 D221133 D221134 D221135 D221136 D221137 D221138 D221139 D221140 D221141 D221142 D221143 D221144 D 221 145 D196598 D 196599 D209953 D209954 D209955 D209956 D209958 D209959 D209960 EU (PPM) B B B B B B B B B B B B B B B B B B N F (PPM) GA-S (PPM) GD-S (PPM) B N N N N B B N N B B N B B B B B N N GE-S (PPM) N N N N N N N N N N N N N N N HF (PPM) N N N N N N N N N N N N N N N N N N N HG (PPM) LA (PPM) N N N N N N N N N N N N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D 196656 D 196657 D 196658 D 196659 D 196660 D 196661 D 196662 D196641 D 196642 D221125 D221126 D221127 D221128 D221129 D221130 D221131 D221132 D221133 D221134 D221135 D221136 D221137 D221138 D221139 D221140 D221141 D221142 D221143 D221144 D221145 D 196598 D 196599 D209953 D209954 D209955 D209956 D209957 D209958 D209959 D209960 14,3

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D1 96656 D1 96657 D196658 D196659 D196660 D196661 D196662 D 196641 D 19664 2 D221125 D221126 D221127 D221128 D221129 D221130 D221131 D221132 D221133 D221134 D221135 D221136 D221137 D221139 D221140 D221141 D221142 D221143 D221144 D221145 D1 96598 D196599 D209953 D209954 D209955 D209956 D209957 D209958 D209959 D209960 MO-S (PPM) N NB-S (PPM) N N N N N ND-S (PPM) B B B B B B B B B B B B B B B B B B N NI-S (PPM) P (PPM) PB (PPM) SB (PPM) SC (PPM) SE (PPM) N N N N N N N N SN-S (PPM) N N N N N N N N N N N N N N N N N N N SAMPLE NUMBER D 196656 D 196657 D196658 D 196659 D 196660 D196661 D196662 D196641 D196642 D221125 022 11 26 D221127 D221128 D221129 D221130 D221131 D221132 D221133 D221134 D221135 D221136 D221137 D221138 D221139 D221140 D221141 D221142 D221143 D221144 D221145 D196598 D 196599 D209953 D209954 D209955 D209956 D209957 D209958 D209959 D209960

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D 196657 D 196659 SR-S (PPM) TH (PPM) N N TL-S (PPM) N N N N N N N N N N N N N N N N N N N U (PPM) V-S (PPM) W (PPM) N N N N N N N N N N N N N N N N N N N Y-S (PPM) YB (PPM) B ZN (PPM) ZR-S (PPM) SAMPLE NUMBER D221131

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE SI AL CA MG NA K FE TI NUMBER (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) (PERCENT) AG-S AS (PPM) (PPM) N N N N N N N N SAMPLE NUMBER

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D 24 0931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941 B-S (PPM) BA-S (PPM) 1,200 1,100 BE-S (PPM) CD (PPM) CE (PPM) N N N N N N N N (PPM) B B B B B B B B B B B B B B B B B B B B B B B CO (PPM) CR (PPM) CU (PPM) DY-S (PPM) N N B N N B B B SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE EU NUMBER (PPM) D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941 N B B B B B B B F (PPM) GA-S (PPM) GD-S (PPM) N N B N N B B B GE-S (PPM) N N N N N N HF (PPM) N N N N N N N N HG (PPM) LA (PPM) N N N N N N N (PPM) MN (PPM) SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941 MO-S (PPM) NB-S (PPM) N ND-S (PPM) N B B B B B B B NI-S (PPM) P (PPM) PB (PPM) SB (PPM) SC (PPM) SE (PPM) B B SN-S (PPM) N N N N N N N N SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941

Table 1f. (cont'd.) Major-, minor-, and trace-element concentrations of 383 lignite samples from the Fort Union Region. SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D 240941 SR-S (PPM) 1,000 TH (PPM) TL-S (PPM) N N N N N N N N U (PPM) V-S (PPM) U (PPM) N N N N N N N N Y-S (PPM) YB (PPM) ZN (PPM) 2R-S (PPM) SAMPLE NUMBER D209961 D209962 D209963 D209964 D209965 D209966 D209967 D209968 D240927 D240928 D240929 D240930 D240931 D240932 D240933 D240934 D240935 D240936 D240937 D240938 D240939 D240940 D240941

Table 2a. Location information for 22 rock samples from the Fort Union Region- North Dakota and Montana. NDE no data entered. SAMPLE NUMBER D178513 D178514 D178515 D178516 D178517 D178518 D178519 D 178520 D 178521 D 178522 D1 78523 D 178524 D 178525 D 178526 D 178527 D 178528 D 178529 D188139 D 178940 D 178941 D 178942 D 178943 STATE NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA NORTH DAKOTA MONTANA MONTANA MONTANA MONTANA MONTANA COUNTY DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN DUNN RICHLAND MCCONE MCCONE MCCONE MCCONE QUADRANGLE DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5 ') DUNN CENTER (7.5') DUNN CENTER (7.5 ') DUNN CENTER (7.5 1 ) DUNN CENTER (7.5 1 ) SKAAR NE (7.5 ') BUG CREEK (7.5 1 ) NELSON CREEK BAY (7.5 ') NELSON CREEK BAY (7.5 ') FRANK COULEE (7.5 ') LATITUDE 471733N 471733N 471733N 471733N 471733N 471733N 471733N 471733N 471733N 471733N 471708N 471708N 471708N 471708N 471708N 471708N 471708N 473000N 474032N 473302N 473302N 472830N LONGITUDE 1023454W 1023454W 1 023454 W 1023454W 1023454W 1023454W 1023454W 1023454W 1023454W 1023454W 1 02331 1W 1 02331 1W 1 02331 1W 1 02331 1W 102331 1W 102331 1W 102331 1W 1040730W 1061008U 1061202W 1061202U 1061740U LOCATION NAME NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE

Table 2b. Geologic information for 22 rock samples from the Fort Union Region- North Dakota and Montana. NDE no data entered. Data for associated coal shown in Table 1 for samples marked with SAMPLE NUMBER D178513 D178514 D178515 D178516 D178517 D 17851 8 D 178519 D 178520 D 178521 D 178522 D 178523 D 178524 D 178525 D 178526 D 178527 D 178528 D 178529 D188139* D 178940 D 178941 D 178942 D 178943 GROUP/FORMATION FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP FORT UNION GP BED NAME NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE NDE LITHOLOGY SANDSTONE SANDSTONE SKALE SANDSTONE ROCK SHALE SANDSTONE SHALE SANDSTONE SHALE SANDSTONE SILTSTONE SANDSTONE SANDSTONE SHALE SANDSTONE SHALE CLAY CLAYSTONE CLAYSTONE CLAYSTONE SILTSTONE FIELD ID NO. DH75-102-A DH75-102-B DH75-102-C DH75-102-D DH75-102-E DH75-102-F DH75-102-G DH75-102-H DH75-102-I DH75-102-J DH75-101-A DH75-101-B DH75-101-C DH75-101-D DH75-101-E DH75-101-F DH75-101-G 76C-010B CRWR-1 CRWR-2 CRWR-3 CRWR-4 COLLECTOR USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E USGD-SUANSON V E

Table 2c. Sample information for 22 rock samples from the Fort Union Region- North Dakota and Montana. SAMPLE NUMBER D178513 D1 78514 D178515 D178516 D178517 D1 78518 D178519 D1 78520 D1 78521 D 178522 D 178523 D 178524 D 178525 D 178526 D 178527 D 178528 D 178529 D 188 139 D 178940 D 178941 D 178942 D 178943 DEPTH SAMPLE THICKNESS CM IN CM IN (96.0) (264.0) (348.0) (468.0) (756.0) (900.0) (1092.0) (1440.0) (1740.0) (1944.0) (300.0) (600.0) (984.0) (1200.0) (1440.0) (1686.0) (1866.0) (1812.0) (0.0) (0.0) (6.0) (0.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (6.0) (1.2) (6.0) (44.0) (132.0) SAMPLE TYPE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE DRILL CORE CHANNEL CHANNEL CHANNEL CHANNEL US US US US US US US US US US US US US US us us us us us us us us ANALYTICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL GEOLOGICAL LABS SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY SURVEY DATA VALUES REPRESENT SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE DATE YR/MO/DY

Table 2d. Major- and minor- oxides concentrations in the laboratory ash (525 degrees C) of 22 rock samples from the Fort Union Region- North Dakota and Montana. Values in percent. L less than the value shown. SAMPLE NUMBER D178513 D1785U D178515 D178516 D178517 D178518 D1 78519 D 178520 D 178521 D 178522 D178523 D 178524 D 178525 D 178526 D 178527 D 178528 D 178529 D 188 139 D 178940 D 178942 D 178943 ASH (PERCENT) SI02 (PERCENT) AL203 (PERCENT) CAO (PERCENT) MGO (PERCENT) NA20 (PERCENT) K20 (PERCENT) FE203 (PERCENT) TI02 (PERCENT) S03 (PERCENT) SAMPLE NUMBER D178513 D1 78514 D178515 D178516 D178517 D178518 D178519 D 178520 D 178521 D 178522 D 178523 D 178524 D 178525 D 178526 D 178527 D 178528 D 178529 D 188 139 D 178940 D 178941 D 178942 D 178943

Table 2e. Major-, minor-, and trace-element concentrations of 22 rock samples from the Fort Union Region- North Dakota and Montana. [Values in percent or parts-per-million. Elements not from direct determinations on whole coal (figure 3) have been calculated from analyses of ash. S analysis by emission spectography; L, less than the value shown; N, not detected.] SAMPLE NUMBER D178513 D178514 D178515 D178516 D178517 D178518 D178519 D1 78520 D178521 D 178522 D 178523 D 178524 D 178525 D 178526 D 178527 D 178528 D 1785 29 D 188 139 D 178940 D1 78941 D 178942 D 178943 SI (PERCENT) AL (PERCENT) CA (PERCENT) MG (PERCENT) NA (PERCENT) K (PERCENT) FE (PERCENT) TI (PERCENT) AS (PPM) B-S (PPM) N N N N N SAMPLE NUMBER D178513 D178514 D178515 D178516 D178517 D178518 D1 78519 D 178520 D 178521 D 178522 D 178523 D1 78524 D 178525 D 178526 D 178527 D 178528 D 178529 D188139 D1 78940 D 178941 D 178942 D 178943

Table 2e. (cont'd.) Major-, minor-, and trace-element concentrations of 22 rock samples from the Fort Union Region. SAMPLE NUMBER D178513 D1785U D178515 D178516 D178517 D178518 D178519 D 178520 D1 78521 D 178522 D1 78523 D1 78524 D1 78525 D1 78526 D 178527 D 178528 D 178529 D188139 D 178940 D1 78941 D 178942 D1 78943 BA-S (PPM) 1,700 BE-S (PPM) N N N N N N N N N N N N N N N N N N CO (PPM) N N N N N CR (PPM) CU (PPM) F (PPM) GA-S (PPM) N HG (PPM) (PPM) MN (PPM) SAMPLE NUMBER D178513 D1 78514 D178515 D178516 D178517 D178518 D178519 D 178520 D178521 D 178522 D1 78523 D 178524 D 178525 D1 78526 D 178527 D1 78528 D 178529 D 188 139 D 178940 D1 78941 D 178942 D 178943

Table 2e. (cont'd.) Major-, minor-, and trace-element concentrations of 22 rock samples from the Fort Union Region. SAMPLE NUMBER D178513 D178514 D178515 D178516 D178517 D178518 D178519 D 178520 D 178521 D 178522 D 178523 D 178524 D 178525 D 178526 D 178527 D 178528 D1 78529 D188139 D 178940 D1 78941 D 178942 D 178943 MO-S (PPM) N N N N N N N N N N N N N N N NB-S (PPM) N N N N N N N N N MI-S (PPM) N PB (PPM) SB (PPM) SC (PPM) N N N SE (PPM) SR-S (PPM) TH (PPM) N U (PPM) SAMPLE NUMBER D178513 D1 78514 D178515 D178516 D178517 D178518 D178519 D 178520 D 178521 D 178522 D 178523 D 178524 D 178525 D 178526 D1 78527 D 178528 D 178529 D 188 139 D 178940 D 178941 D 178942 D 178943

Table 2e. (cont'd.) Major-, minor-, and trace-element concentrations of 22 rock samples from the Fort Union Region. SAMPLE NUMBER D178513 D178514 D178515 D178516 D178517 D178518 D178519 V-S (PPM) Y-S (PPM) N YB (PPM) ZN (PPM) ZR-S (PPM)

Table 3. Statistics for lignite beds in the Fort Union region. [Values are in percent, except heat of combustion values, and are reported on an as-received basis. N is number of samples.] North Dakota N=216 Range mean Min Max Montana N=88 Range Arithmetic mean Mm Max Regional N=304 Arithmetic mean Proximate and ultimate analyses Moisture Volatile matter Fixed carbon Ash Hydrogen Carbon Nitrogen Oxygen Sulfur Heat of combustion Kcal/kg Btu/lb

Table 4. Statistics for lignite beds in North Dakota and Montana, [Values are in parts per million on a whole coal basis. N is number of samples. Analytical methods are listed below. Values less than detection limits were not used.] North Dakota Range Geometric

mean Min Max Montana Range Geometric

mean Min Max Regional Geometric mean (N) Trace element analyses As Ba Cd Ge Hg Mn Na Pb Se U Zr (284) (303) (61) (69) (304) (297) (304) (304) (253) (281) (286) (304) As determined by heteropoly blue spectrophotometric method, or graphite furnace-atomic absorption method, or INAA. Ba,Ge,Zr determined by six-step spectrographic method, or plate-reader spectrographic method. Mn determined by six-step spectrographic method or atomic absorption. Se determined by x-ray fluorescence or INAA. U determined by delayed neutron activation. All other elements determined by colorimetric methods.

REFERENCES Affolter, R.H. and Hatch, J.R., 1980, Chemical analyses of lignite from the Fort Union Formation, McCone, Richland, Dawson, and Wibaux Counties, Montana and Golden Valley County, North Dakota: U.S. Geological Survey Open-File Report 80-179, 40 p. Affolter, R.H. and Kirschbaum, M.A., 1982, Chemical analyses of lignite from the Sentinel Butte Member of the Paleocene Fort Union Formation, North Beulah EMRIA study site, Mercer County, North Dakota: U.S. Geological Survey Open-File Report 82-131, 21 p. American Society for Testing and Materials (ASTM), 1981, Annual book of ASTM standards, Part 26- Gaseous fuels, coal, and coke, atmospheric analysis: ASTM, 920 p. Daly, D.J., Groenewold, G.H., and Schmit, C.R., 1985, Paleoenvironments of the Paleocene Sentinel Butte Formation, Knife River area, west-central North Dakota: in Cenozoic Paleogeography of west-central United States, Flores, R.M. and Kaplan, S.S., eds., SEPM Rocky Mountain Symposium 3, Denver, CO, p. 171-185. Golightly, D.W., and Simon, F.O., eds., 1989, Methods for sampling and inorganic analysis of coal: U.S. Geological Survey Bulletin 1823, 72 p. Hatch, J.R. and Affolter, R.H., 1978, Chemical analyses of lignite from the Sentinel Butte Member of the Fort Union Formation, Dunn Center Field, Dunn County, North Dakota: U.S. Geological Survey Open-File Report 78-1078, 42 p. Swanson, V.E., and Huffman, C., 1976, Guidelines for sample collection and analytical methods used in the U.S. Geological Survey for determining composition of coal: U.S. Geological Circular 735, 11 p. Swanson, V.E., Medlin, J.H., Hatch, J.R., Coleman, S.L., Wood, Jr., G.H., Woodruff, S.D., and Hildebrand, R.T., 1976, Collection, chemical analysis, and evaluation of coal samples in 1975: U.S. Geological Survey Open-File Report 76-468, 503 p. Tewalt, S.J., Finkelman, R.B., and Hildebrand, R.T., in press, Lignite chemical characteristics and trends in the Fort Union Region, North Dakota and Montana, in Finkelman, R.B., Daly, D.J., and Tewalt, S.J., eds., Geology and Utilization of Fort Union Lignites: Environmental and Coal Associates, 15 p. U.S. Geological Survey and Montana Bureau of Mines and Geology,- 1976, Preliminary report of coal drill-hole data and chemical analyses of coal beds in Campbell, Converse, and Sheridan Counties, Wyoming; and Big Horn, Richland, and Dawson Counties, Montana: U.S. Geological Survey Open-File Report 76-450, 382 p.

U.S. Geological Survey and Montana Bureau of Mines and Geology, 1977, Preliminary report on 1976 drilling of coals in Campbell and Sheridan Counties, Wyoming; and Big Horn, Dawson, McCone, Richland, Roosevelt, Rosebud, Sheridan, and Wibaux Counties, Montana: U.S. Geological Survey Open-File Report 77-283, 403 p.