Mine detail: Bertha May

Previously called ''

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Location

Lat / long:

46.38712, -112.57867

Resource(M)

Primary:	Silver, Lead
Secondary:	Gold, Copper, Zinc
Tertiary:	Antimony
Ore:	Chalcopyrite, Galena, Gold, Sphalerite, Tetrahedrite
Gangue:	Pyrite, Quartz
Discovery year:	1888

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Basalt
Associated rock:	Elkhorn Mountain Volcanics
Associated type:	Basalt
Structure:	Boulder Batholith
Alteration processes:	Hydrothermal

References

MRDS	D009418
DEP	10097849
Reference	{Deposit:: MBMG MEM 34, P. 17.}{Deposit:: MBMG BULL 98, P. 59.}
Reporter	Wise, Kristine K. (Elliott, James E.)