Maryland · Washington County
Past Producer
Potomac Refining Co. Mine
Washington County, Maryland, United States
Manganese
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USGS source ↗
Commodities
Primary
Manganese
Commodity type
M
Deposit
Deposit type
Residual
Deposit size
S
Economic & production
Development status
Past Producer
Identification
Deposit ID
10084500
MRDS ID
W101877
Region
NA
Data score
D
Coordinates
39.36947, -77.73859
References
SINGEWALD, 1911, MD GS V.