California · Trinity County
Prospect
Big Horn No. 1
Trinity County, California, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Economic & production
Development status
Prospect
Discovery year
1942
Identification
Deposit ID
10117771
MRDS ID
M020300
Alternate names
Helmke Manganese Group
Region
NA
Data score
D
Coordinates
40.12705, -123.50221
References
CA DEPT. OF NATURAL RESOURCES BULLETIN 125, 1950,PGS. 302-341.CA DEPT. OF NATURAL RESOURCES BULLETIN OF WAR MINERALSPROD. BULLETIN 6, 1942.