EMPIRE GULCH MINING COMPANY Confederate Gulch District (Backer). Broadwater County. Minerals Yearbook 1940. Page 353. Empire Gulch Mining Company operating the Boulder Bar, which was formerly operated by Charles L. Sheridan. Placer gold treated 100,000 cubic yards of gravel.
WPA, "Empire Gulch" (1940). Minerals Yearbook, All. 385.
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Empire Gulch, Confederate Gulch District, Broadwater County, placer