https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12286318Edit ImageSaveSaveEditCropCustom TextConcentration plant for Danube Mine near Bovey, Minnesota. 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 927 px | 300 dpiLarge JPEG 3500 x 2703 px | 300 dpiBest Quality JPEG 14081 x 10873 px | 300 dpiTIFF 14081 x 10873 px | 300 dpi | 146.03 MBFree DownloadConcentration plant for Danube Mine near Bovey, Minnesota. Sourced from the Library of Congress.More