ActiveIntermittentNew mineTemporarily idledNon-producingAbandonedHistoric mine (USGS)

Historic gold producers in Hancock County (USGS)

USGS records 35 historic gold producers in Hancock County: 34 past producers and 1 listed as a producer or plant. For 10 of them USGS gives an output size (1 large, 1 medium, 8 small). Production years are recorded for 1 sites, from 1972 to 1977. The most common deposit type is polymetallic veins (12 sites).

Show the 35 sites

Site	USGS status	Output	Commodities	Years
Blue Hill Mine (1880s)	Producer	large	Zinc, Lead, Copper, Gold, Silver	1972 to 1977
Cape Rosier Mine (1968-1972)	Past producer	medium	Zinc, Copper, Silver, Gold	n/a
Copperopolis (Custer) Mine	Past producer	small	Silver, Lead, Gold, Copper	n/a
Deer Isle Mine (1870s, 1907-1910?)	Past producer	small	Lead, Zinc, Gold, Silver, Copper	n/a
Eggemoggin Silver Mine (1876)	Past producer	small	Gold	n/a
Emerson & North Castine	Past producer	small	Copper, Lead, Zinc, Gold, Silver	n/a
Franklin and Franklin Extension Mine	Past producer	small	Lead, Zinc, Silver, Gold, Copper	n/a
Gouldsboro Mine (1878-1928)	Past producer	small	Copper, Lead, Silver, Antimony, Gold	n/a
Hercules Mine	Past producer	small	Zinc, Copper, Lead, Gold, Silver	n/a
Sullivan & Waukeag Mine (1878-1884)	Past producer	small	Copper, Lead, Zinc, Silver, Gold	n/a
Atlantic Mine	Past producer	n/a	Gold, Silver, Copper	n/a
Clark and Clark Extension Mines	Past producer	n/a	Gold, Silver, Copper	n/a
Dirigo Mine	Past producer	n/a	Lead, Gold, Silver	n/a
Douglas Copper Mine	Past producer	n/a	Copper, Silver, Gold, Lead	n/a
East Blue Hill Mine	Past producer	n/a	Lead, Gold, Silver	n/a
Eastern Star Mine	Past producer	n/a	Gold, Silver	n/a
Fannueil Hall & Sullivan	Past producer	n/a	Silver, Gold	n/a
Franeuil Hall & Sullivan Mine	Past producer	n/a	Silver, Gold	n/a
Frenchman's Bay Silver Mine	Past producer	n/a	Copper, Lead, Gold, Silver	n/a
Golden Circle Mine	Past producer	n/a	Gold, Bismuth, Silver, Tellurium	n/a
Golden Circle Mine	Past producer	n/a	Gold, Silver, Tellurium, Bismuth	n/a
Granger Mine	Past producer	n/a	Iron, Sulfur, Silver, Tin, Gold, Manganese	n/a
Granger Mine	Past producer	n/a	Silver, Manganese, Tin, Sulfur, Iron, Copper, Gold	n/a
Hinckley Prospect	Past producer	n/a	Silver, Gold	n/a
Manhattan Mine	Past producer	n/a	Gold, Silver, Copper	n/a
Millbrook Mine	Past producer	n/a	Silver, Gold	n/a
Millbrook Mine	Past producer	n/a	Silver, Gold	n/a
North Castine Mine	Past producer	n/a	Lead, Gold, Silver	n/a
Pentagoet Mine	Past producer	n/a	Gold, Lead, Silver	n/a
Robert Emmet Silver Mine	Past producer	n/a	Gold, Silver, Copper, Lead	n/a
Stover Hill	Past producer	n/a	Gold, Silver, Copper	n/a
Sullivan Mine	Past producer	n/a	Copper, Gold, Lead, Silver, Zinc	n/a
Victoria Mine	Past producer	n/a	Copper, Gold, Silver, Lead	n/a
West and Soule Mine	Past producer	n/a	Lead, Copper, Zinc, Gold, Silver	n/a
White Star Silver and Copper Mine (1880)	Past producer	n/a	Gold, Silver, Copper	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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