Mine detail: Hoffman Iron Deposit Mine

Previously called ''

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Location

Lat / long: 44.30913, -103.6964

Resource(M)

Primary: Iron
Secondary: Manganese
Ore: Hematite, Iron
Orebody form: HORIZONTAL

Production

Operation type: Unknown
Deposit type: Placer
Production size: Small
Development status: Past Producer
First production started: 1948

Geology

References

MRDSSD02077
DEP10055515
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.