Manganese deposits of the Flat Top and Round Mountain districts, Bland and Giles Counties, Virginia
Manganese deposits of the Flat Top and Round Mountain districts, Bland and Giles Counties, Virginia by Ladd, Harry Stephen, Stead, Frank Walter (1944). Full…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
Manganese deposits of the Flat Top and Round Mountain districts, Bland and Giles Counties, Virginia Author: Ladd, Harry Stephen, Stead, Frank Walter Year: 1944 Category: Report Tags: usgs, manganese Virginia deposits Source: https://pubs.usgs.gov/bul/0940h/plate-38.pdf