California · Humboldt County
Occurrence
Red Knoll
Humboldt County, California, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Deposit
Deposit size
N
Economic & production
Development status
Occurrence
Identification
Deposit ID
10030538
MRDS ID
M008725
Region
NA
Data score
D
Coordinates
40.56817, -123.78669
References
EC. MIN. MAP OF CALIF. NO. 5, MANGANESE, 1943CALIF. B. 125, 1943, P. 116PSFC REPORT, FIG. 13, CALIF. DIV. MINES BULL. 152, P. 71