California · Humboldt County
Occurrence
Martin and Murphy Claim
Humboldt County, California, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Economic & production
Development status
Occurrence
Discovery year
1918
Identification
Deposit ID
10163480
MRDS ID
M020018
Region
NA
Data score
D
Coordinates
40.40204, -123.64442
References
MAS BACKUP FILE WFOC1941 P 505