Mine detail: Helena-Jefferson Mine

Previously called ''

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Location

Lat / long: 46.35684, -112.04671

Resource(M)

Primary: Silver, Lead, Zinc
Secondary: Copper
Tertiary: Molybdenum
Ore: Alabandite, Chalcopyrite, Galena, Molybdenite, Rhodonite, Sphalerite
Gangue: Calcite, Pyrite, Quartz, Rhodochrosite

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
First production started: 1928
Last production ended: 1928

Geology

Host type:Quartz Monzonite,Granite
Associated rock:Boulder Batholith
Associated type:Quartz Monzonite,Granite
Structure:Boulder Batholith

References

MRDSDC10906
DEP10019594
Reference{Deposit:: USGS PP 428, PL. 1}{Deposit:: MBMG BULL-16, P. 51, 109.}{Deposit:: USGS BULL 842, P. 238-40.}{Production:: MBMG BULL 16, P. 109.}
ReporterUnknown, Wise, Kristine K. (Elliott, James E.)