Commodities
PrimaryTin
TertiaryTungsten
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formDIKE
Materials
Ore mineralsCassiterite, Wolframite
GangueGraphite, Mica, Quartz
Geology
Associated rockPegmatite
Tectonic settingSouthern Black Hills
Economic & production
Development statusPast Producer
Last production1894
Discovery year1884
Identification
Deposit ID10011975
MRDS IDD007192
Alternate namesCowboy Group
RegionNA
Data scoreB
Coordinates43.92552, -103.59835
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.