Mine detail: Olaf Seim Mine

Previously called 'Gotland'

<< Back to the map

Location

Lat / long: 44.36857, -103.74363

Resource(M)

Primary: Sulfur-Pyrite
Secondary: Gold
Tertiary: Copper
Ore: Chalcopyrite, Gold, Pyrite
Gangue: Melanterite

Production

Operation type: Unknown
Deposit type: Replacement
Production size: Small
Development status: Past Producer
First production started: 1890

Geology

References

MRDSSD02157
DEP10055572
Reference{Deposit:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688}{Production:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I BUREAU OF MINES INFORMATION CIRCULAR 7688}
ReporterBarari, Rachel A.