Mine detail: Copper State Mine

Previously called 'Hoffman Property'

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Location: Granite County, Montana, United States, North America
Lat / long: 46.49156, -113.25648
dep_id: 10019278
mrds_id: DC09370
Commodity type: metallic
Major mineral: Copper
Minor mineral: Gold, Silver
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Copper, Iron
gangue: Quartz
alteration: Oxidation
ore_ctrl: Shattered Limestone Impregnated With Iron, Copper Oxides And Carbonates.
Reporter: Unknown, Wise, Kristine K. (Elliott, James E.)
hrock_unit: Silver Hill Formation
hrock_type: Limestone
Structure: Philipsburg Anticline, Philipsburg Batholith
ylp_ba: <
yr_lst_prd: 1906
References:
  • Deposit:: USGS PP 78, P. 260.
  • Deposit:: MBMG GEOLOGIC MAP OF THE NW FLANK OF THE FLINT CREEK RANGE
  • Deposit:: MBMG BULL 49, P. 13.
  • Deposit:: USGS-USBM MINERAL YEARBOOKS 1927, 1930.
  • Production:: USGS PP 78, P. 260. USGS-USBM MINERAL YEARBOOKS 1927, 1930
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