Ann Mine (Gladys Wells Mine; Gladys Nells Mine on the Map), Custer District, Custer Co., South Dakota, USA
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Production:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRC
Deposit:: PAGE,L R ET AL,U S G S PP 247 P 61
Commodities (Major) - Mica
Development Status: Past Producer
Host Rock: Quartzite, Schist
Tectonic Structure: Southern Black Hills
4 entries listed. 2 valid minerals.
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