Mine detail: Boulder Cobalt Mine

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Location: Madison County, Montana, United States, North America
Lat / long: 45.59796, -112.12198
dep_id: 10014512
mrds_id: D011320
Commodity type: metallic
Major mineral: Gold
Minor mineral: Silver, Copper
Operation type: Unknown
Deposit type: Vein
Production size: Small ammount of material produced
Development status: Past Producer
ore: Copper, Gold, Silver
gangue: Pyrite, Siderite
Reporter: Loen, Jeffrey S. (Pearson, Robert C.)
hrock_type: Gneiss
References:
  • USGS MF 1590-C, 1983, TABLE 1, FIG-1
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