Abstract Consists of seventeen photographs documenting the destructive effects of hydraulic mining. Includes images of washed-over roads, ruined orchards, broken dams, riverbank gravel deposits, and working hydraulic hoses. Photos were taken in Nevada, Sutter, and Yuba counties and feature the Yuba and Feather Rivers. Two other photographs depict waterfront and shipping scenes in unidentified location, probably San Francisco. One photograph shows a dredge docked near an unidentified waterfront. J.A....

Abstract Consists of photographs depicting irrigation and water projects throughout California and other western locations collected by William Hammond Hall. The photographs were probably collected while Hall acted as California's first State Engineer (1878-1888) and while he worked in the private sector as a civil engineer. The photographs span the years 1868 to 1917 and depict various water projects throughout California. The photographs comprise a variety of formats including albumen silver...