Mine detail: Spearfish Claim Gp

Previously called 'Claims - Van, Yosemite, Centaur,Iron and Spearfish'

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Location

Lat / long:

44.37716, -104.04028

Resource(M)

Tertiary:	Niobium (Columbium), Tin
Other material:	Cassiterite, Columbite
Discovery year:	1934

Production

Operation type:	Surface
Development status:	Prospect

Geology

References

MAS	460810017
DEP	10129052
Reference	{Deposit:: GARDNER, E D, 1939, TIN DEPOSITS OF THE BLACK HILLS, SOUTH D}{Deposit:: USBM IC 7069, P 62-4.}{Deposit:: PAGE, LINCOLN R, AND WARD C SMITH, 1941, TIN-DEARING PEGMATI}{Deposit:: THE TINTON DISTRICT, LAWRENCE CO, SOUTH DAKOTA. USGS BULL}{Deposit:: P 628-9.}
Reporter	Hite, Alan G.