Mine detail: Helena Mine

Previously called ''

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Location

Lat / long:

46.62684, -112.12505

Resource(M)

Primary:	Silver, Lead
Secondary:	Gold, Zinc
Ore:	Galena, Gold

Production

Operation type:	Unknown
Deposit type:	Contact Metasomatic
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Empire Shale
Host type:	Shale
Associated rock:	Scratchgravel Quartz Monzonite Stock
Associated type:	Quartz Monzonite
Structure:	Boulder Batholith, Scratchgravel Quartz Monzonite Stock

References

MRDS	DB02182
DEP	10015900
Reference	{Deposit:: USGS BULL 842, P. 57-58.}{Deposit:: MBMG BULL 14, P. 22.}{Production:: USGS BULL 842, P. 57.}
Reporter	Elliott, James E., Wise, Kristine K. (Elliott, James E.)