The geology and ore deposits of Upper Mayflower Gulch, Summit County, Colorado
Upper Mayflower Gulch is on the highly glaciated western side of the Tenmile Range near Kokomo in central Colorado. Somewhat less than $500,000 in silver and…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
The geology and ore deposits of Upper Mayflower Gulch, Summit County, Colorado Author: Randall, John Alexander Year: 1958 Category: Report Upper Mayflower Gulch is on the highly glaciated western side of the Tenmile Range near Kokomo in central Colorado. Somewhat less than $500,000 in silver and gold has been produced from the area since the first mining in the 1880' s. In the mapped area high grade regional metamorphism has produced two varieties of gneiss and a granulite. Total thickness of the rocks is about 5,000 feet. Relict bedding is preserved in compositional banding which strikes north to N. 20 ? E. and dips 70 ? to 80 ? southeast. No significant folding was observed. Normal faulting has occurred since the Precambrian; t Tags: usgs, Summit County Colorado gold Source: https://pubs.usgs.gov/of/1958/0079/plate-1.pdf