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Mine detail: Calhoun Mine
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North America
United States
Maryland
Baltimore
Previously called ''
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Location
Lat / long:
39.43832, -76.82527
Resource(M)
Tertiary:
Chromium
Production
Operation type:
Surface-Underground
Development status:
Past Producer
Geology
References
MAS
240050006
DEP
10145365
Reference
PEARRE N HEYL A JR USGS BULL 1082K PG 759 1960
Reporter
Harrison