Mine detail: Bald Butte Mine

Previously called ''

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Location

Lat / long:

46.72268, -112.34728

Resource(B)

Primary:	Gold, Silver
Secondary:	Copper, Lead
Tertiary:	Fluorine-Fluorite, Molybdenum
Ore:	Fluorite, Galena, Molybdenite, Sphalerite
Gangue:	Pyrite, Quartz, Sericite
Orebody form:	STRATA-BOUND

Production

Operation type:	Unknown
Deposit type:	Polymetallic veins
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Helena Limestone
Host type:	Limestone
Associated rock:	Belmont Prophyry;Marysville Stock
Associated type:	Diorite
Structure:	Boulder Batholith, Prickly Pear Dome, Marysville Stock, Post-Mineral Downthrown Fault Blocks
Tectonic:	Cordilleran Miogeosyncline
Alteration processes:	Sericitization, Fluoritization

References

MRDS	W014705
DEP	10071364
Reference	{Deposit:: MBMG BULL 28, P. 6, 22, 23.}{Deposit:: USGS BULL 955-E, P. 220.}{Deposit:: USGS BULL 527.}{Deposit:: USGS PP 57, P. 178}{Production:: KNOPF, 1913, U.S.G.S. BULL. 527}
Reporter	Mlynarczyk, Meg S., Wise, Kristine K. (Elliott, James E.)