California · Trinity County
Prospect
Corner No. 1 and No. 2 Prospects
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
10117493
MRDS ID
M020318
Alternate names
Helmke Manganese Group
Region
NA
Data score
D
Coordinates
40.14515, -123.52472
References
USGS 1942CALIF BULL 152 1950 P 313