Wyoming · Johnson County
Past Producer
Big Horn Mine
Johnson County, Wyoming, United States
Manganese
Gold
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USGS source ↗
Commodities
Primary
Manganese, Gold
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Materials
Ore minerals
Gold
Gangue
Hornblende, Quartz
Geology
Host rock
Schist
Economic & production
Development status
Past Producer
Identification
Deposit ID
10080809
MRDS ID
W032180
Alternate names
Powder River Mine
Region
NA
Data score
C
Coordinates
44.02966, -107.10318
References
GSW BULL 50, P. 8