https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12270480Edit ImageSaveSaveEditCropCustom TextProspector testing ore samples. Esmeralda County, Nevada. 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 921 x 1200 px | 300 dpiLarge JPEG 2686 x 3500 px | 300 dpiBest Quality JPEG 10483 x 13661 px | 300 dpiTIFF 10483 x 13661 px | 300 dpi | 273.3 MBFree DownloadProspector testing ore samples. Esmeralda County, Nevada. Sourced from the Library of Congress.More