Mine detail: Anna No 2 Fraction

Previously called 'A.J. Johnston Groups'

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Location

Lat / long: 44.39076, -104.06449

Resource(M)

Tertiary: Niobium (Columbium), Tin
Other material: Cassiterite, Trona

Production

Operation type: Surface
Development status: Prospect

Geology

References

MAS560110001
DEP10279056
Reference{Deposit:: GARDNER E D, 1939, TIN DEPOSITS OF THE BLACK HILLS, SOUTH DA}{Deposit:: USBM IC 7069, P 70.}
ReporterHite, Alan G.