EL DORADO GOLD PLACER MINING CO. Finn District (Washington). Powell County. Minerals Yearbook 1937. Pages 407, 426. Operated the dragline and portable washing plant at the Fontana Placer from April to November both in 1935 and 1936.
WPA, "El Dorado Gold Placer Mining Company" (1937). Minerals Yearbook, All. 253.
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El Dorado, Gold, Placer, Finn District, Powell County, Fontana