California · San Luis Obispo County
Past Producer
Hearst Ranch-Red Rock Deposit
San Luis Obispo County, California, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Economic & production
Development status
Past Producer
Discovery year
1942
Identification
Deposit ID
10237538
MRDS ID
M020153
Region
NA
Data score
D
Coordinates
35.66936, -121.15929
References
CALIF. DIV. MINES BULLETIN 152, 1950, P. 231.U.S. BUREAU OF MINES RI 5579, 1960, P. 44.