ActiveIntermittentNew mineTemporarily idledNon-producingAbandonedHistoric mine (USGS)

Historic gold producers in Flathead County (USGS)

USGS records 15 historic gold producers in Flathead County: 12 past producers and 3 listed as producers or plants. For 2 of them USGS gives an output size (2 small).

Show the 15 sites

Site	USGS status	Output	Commodities	Years
Eudora Mine	Producer	small	Silver, Lead, Gold, Copper	n/a
Grant Mine	Past producer	small	Silver, Gold, Lead, Barium-Barite	from 1964
Hog Heaven District	Producer	n/a	Lead, Gold, Silver	n/a
Flathead Mines	Plant	n/a	Lead, Silver, Gold, Zinc, Copper	from 1928
Blacktail Prospect	Past producer	n/a	Silver, Copper, Gold, Lead	n/a
Blue Grouse Group	Past producer	n/a	Silver, Gold, Bismuth, Copper	n/a
Foolsburg Mine	Past producer	n/a	Copper, Gold, Silver	n/a
Griffin Creek Prospect	Past producer	n/a	Copper, Gold, Silver	n/a
Herrig Placer	Past producer	n/a	Gold	n/a
Mary Ann Mine	Past producer	n/a	Gold, Silver, Lead	n/a
O.F. Martin Mine	Past producer	n/a	Gold, Zinc, Silver, Lead, Copper	n/a
Ole Mine	Past producer	n/a	Gold, Copper, Silver	n/a
West Virginia Mine	Past producer	n/a	Gold, Copper, Silver	n/a
Wort Prospect	Past producer	n/a	Copper, Gold, Lead	n/a
Yukon Mine	Past producer	n/a	Copper, Gold, Silver	n/a

Source: USGS Mineral Resources Data System (retrieved 2026-10-13). The database was last updated around 2011, positions can be approximate and "producer" does not mean a mine is operating today. Sites already matched to an MSHA record are shown in the MSHA tables.

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