Mine detail: Armstrong Mine

Previously called ''

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Location

Lat / long:

46.48073, -112.2845

Resource(M)

Primary:	Silver, Lead
Secondary:	Gold, Zinc, Copper
Tertiary:	Uranium
Ore:	Chalcopyrite, Galena, Gold, Sphalerite
Gangue:	Pyrite, Quartz, Tourmaline

Production

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

Geology

Host type:	Quartz Monzonite
Associated rock:	Butte Quartz Monzonite (Boulder Batholith)
Associated type:	Quartz Monzonite
Structure:	Boulder Batholith, Fault Zone Trending East, Dip 80n

References

MRDS	DB02148
DEP	10101933
Reference	{Deposit:: USGS BULL 1151, P. 98, PL. 1.}{Deposit:: US B. OF MINES, 1943, REPT. TO SEC. OF INT.}{Deposit:: USGS BULL 842, P. 248.}{Production:: USGS BULL 1151, P. 97; USBM REPT. TO SEC. INT.}
Reporter	Elliott, James E., Wise, Kristine K. (Elliott, James E.)