Photo Gallery

Historical Mining Photos

Undercurrents in Humbug Creek, S. Yuba River watershed.	Hydraulic monitors in operation, North Bloomfield mine, circa 1880s, Malakoff Diggings, Nevada County.
Biggs No. 2 Dredge, Butte County, California, circa 1910.	Hydraulic mine, ground sluice system, circa 1870s, Scott Valley mine, Siskiyou County.

Commands