Investigation of West Belt Copper-Zinc Mines, El Dorado, Amador, Calaveras, and Mariposa Counties, California
Description:
Report issued by the U.S. Bureau of Mines on the West Belt copper-zinc mines. The properties and characteristics of the mineral composition are presented. The report includes tables and maps.
Date:
February 1951
Creator:
Wiebelt, Frank J.; Sanborn, W. C.; Trengove, R. R. & Ricker, Spangler
Partner:
UNT Libraries Government Documents Department