California · Napa County
Occurrence
Adams and Westendorf Claims
Napa 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
10236983
Region
NA
Data score
D
Coordinates
38.76128, -122.32546
References
CALIF BULL 125 1943 P 145; BULL 152 1950 P 154-6FRANCISCAN TYPE MANGANIFEROUS IRON ORE