Mine detail: Portland Mine and Hercules Mine

Previously called 'Hercules Mine, Portland Mine, Portland & Hercules Mines'

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Location

Lat / long: 42.14967, -106.98177

Resource(M)

Primary: Copper
Tertiary: Platinum, Silver, Gold, Palladium
Ore: Chalcopyrite, Chalcocite, Bornite
Gangue: Hematite, Quartz, Calcite, Siderite

Production

Operation type: Underground
Development status: Prospect

Geology

References

MAS560070375
DEP10205227
Reference{Deposit:: Osterwald and others, 1966, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50 [revised ed.], p. 49.}{Deposit:: Osterwald and others, 1959, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50, p. 46.}{Deposit:: Hausel, 1986, Mineral deposits of the Encampment mining district, Sierra Madre, Wyoming-Colorado: Geological Survey of Wyoming RI-37, p. 22.}{Deposit:: Hausel, 1997, Copper, lead, zinc, molybdenum, and associated metal deposits of Wyoming: Wyoming State Geological Survey Bull. 70, p. 176.}
ReporterWilson, Anna B., Intermountain Field Operations Center (IFOC)