Mine detail: Keystone Mine

Previously called ''

<< Back to the map

Location

Lat / long: 45.89829, -103.41947

Resource(M)

Primary: Gold
Secondary: Silver
Ore: Gold, Silver
Gangue: Pyrrhotite
Discovery year: 1892

Production

Operation type: Unknown
Deposit type: Vein
Production size: Small
Development status: Past Producer

Geology

References

MRDSSD02008
DEP10055456
Reference{Deposit:: ROBERTS, W. L., AND RAPP, GEORGE, 1965 , MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18}{Deposit:: US BUREAU OF MINES, 1955 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2 , BUREAU OF MINES INFORMATION CIRCULAR 7707 .}{Deposit:: US GEOLOGICAL SURVEY, US BUREAU OF RECLAMATION, AND SOUTH DAKOTA GEOLOGICAL SURVEY, 1975 , MINERAL AND WATER RESOURCES OF SOUTH DAKOTA, SOUTH DAKOTA GEOLOGICAL SURVEY BULLETIN 16 .}{Production:: U.S. GEOLOGICAL SURVEY, U.S. BUREAU OF RECLAMATION, AND SOUTH DAKOTA GEOLOGICAL SURVEY, 1975 , MINERAL AND WATER RESOURCES OF SOUTH DAKOTA, SOUTH DAKOTA GEOLOGICAL SURVEY BULLETIN 16}
ReporterBarari, Rachel A.