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. Some images contain a few men and one photo shows two boys. All mounts have handwritten notations that consist of the photograph's number from 1 to 17 (several are written as "Complainants Exhibit" numbers) and description of court case details. All mounts include the following (with slight variations): No. 2900 U.S. Circuit Court District of Cal., Edwards Woodruff vs. North Bloomfield Gravel Mining Co. et al. Each photo has a file date, either Nov. 16, 1882; Dec. 11, 1882; or Sept. 12, 1883. All mount notes indicate that L.S.B. Sawyer was clerk (court records show a Lorenzo Sawyer as judge) and several show J.F. O'Beime as deputy clerk. Most of the mounts contain handwritten captions describing the images, including locations. Six of the mounts have notes that read: "Photographed by J.A. Todd. June 18th, 1883." Four of the mounts read: "Photographed by J.A. Todd. June 19th, 1883." Includes three unnumbered photographs also used as evidence in U.S. Court cases. Two depict waterfront and shipping scenes and are labeled U.S. Circuit Court, Cal. 3880 Boxes Opium V. U.S.A., U.S.Exhibits No. 26 O'Beime." One photograph shows a dredge docked near an unidentified waterfront. It is labeled "vs. SF Bridge Co., Depts. Exhibit no. 3 on [illegible] to show cause for contempt. Filed April 23, 1900 South and Hoffman, [illegible], Byron B. Braizley, Deputy Clerk.