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Mine detail: Big Thom No 1
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North America
United States
South Dakota
Custer
Previously called ''
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Location
Lat / long:
43.71806, -103.69947
Resource(B)
Primary:
Mica
Tertiary:
Beryllium, Feldspar
Production
Operation type:
Surface
Development status:
Past Producer
Geology
References
MAS
460330057
DEP
10274985
Reference
REDDEN,J.A.,1963,USGS PROF.PAPER 297-D,P.275
Reporter
Intermountain Field Operations Center (IFOC)