Mine detail: Trout Mine

Previously called 'PocahontasSpeckled TroutGemAlgonquin Group'

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Location

Lat / long:

46.29572, -113.26786

Resource(M)

Primary:	Silver, Manganese
Secondary:	Copper, Zinc, Gold, Lead
Tertiary:	Arsenic
Ore:	Galena, Gold, Psilomelane, Sphalerite, Tennantite
Gangue:	Pyrolusite, Quartz, Rhodochrosite
Orebody form:	TABULAR, LENTICULAR, PODS
Discovery year:	1868

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1870

Geology

Host rock:	Red Lion Formation;Hasmark Formation;Silver Hill Formation;Flathead Quartzite
Host type:	Quartzite,Marble,Limestone
Structure:	Philipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Tectonic:	Cordilleran Miogeosyncline

References

MRDS	W014680
DEP	10071346
Reference	{Deposit:: USBM REP INVES 4399, 9 P.}{Deposit:: USGS BULL 922-G, P. 157-204.}{Deposit:: USBM REP INVES 4723, 57 P.}{Deposit:: USGS BULL 725, P. 146-174.}{Deposit:: MBMG BULL 25, P. 18.}{Deposit:: USGS PP 78, P. 209-10.}{Deposit:: USGS BULL 1237, P. 15-57, PLATES.}{Production:: USBM RI 4399, RI 4723}
Reporter	Krohn, Douglas H., Wise, Kristine K. (Elliott, James E.)