Mine detail: Dexter Claim

Previously called 'Ashley & Nyswanger'

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Location: Pennington County, South Dakota, United States, North America
Lat / long: 44.06496, -103.47139
dep_id: 10055615
mrds_id: SD02214
Commodity type: metallic
Major mineral: Copper, Gold, Silver, Lead
Operation type: Unknown
Deposit type: Replacement
Production size: No production occurred
Development status: Occurrence
ore: Copper, Galena, Gold, Silver
gangue: Quartz
orebody_fm: QUARTZ STRINGERS
alteration: Iron Oxide Staining, Copper Stains.
ore_ctrl: Quartz Stringers
Reporter: Barari, Rachel A.
hrock_unit: Schist
hrock_type: Schist
Structure: Schist Strikes N. 67 E. And Dips 60 - 65 S.E.
References:
  • U.S. BUREAU OF MINES, 1954, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 768
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