https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12273634Edit ImageSaveSaveEditCropCustom TextDredge used in placer gold mining. Madison County, Montana. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 918 px | 300 dpiLarge JPEG 3500 x 2676 px | 300 dpiBest Quality JPEG 13848 x 10589 px | 300 dpiTIFF 13848 x 10589 px | 300 dpi | 139.94 MBFree DownloadDredge used in placer gold mining. Madison County, Montana. Sourced from the Library of Congress.More