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Mine detail: Potomac Refining Co. Mine
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North America
United States
Maryland
Washington
Previously called ''
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Location
Lat / long:
39.36947, -77.73859
Resource(M)
Primary:
Manganese
Production
Operation type:
Unknown
Deposit type:
Residual
Production size:
Small
Development status:
Past Producer
Geology
References
MRDS
W101877
DEP
10084500
Reference
SINGEWALD, 1911, MD GS V.
Reporter
Whitlow, S.