https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12285121Edit ImageSaveSaveEditCropCustom TextWashed ore being loaded into seventy ton cars for shipment to Duluth-Superior ore docks. Concentration plant at 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 13930 x 10759 px | 300 dpiTIFF 13930 x 10759 px | 300 dpi | 142.95 MBFree DownloadWashed ore being loaded into seventy ton cars for shipment to Duluth-Superior ore docks. Concentration plant at Bovey, Minnesota. Sourced from the Library of Congress.More