https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12267659Edit ImageSaveSaveEditCropCustom TextA coal mine in southern Iowa. Near Ottumwa, off U.S. Highway No. 34. 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 897 px | 300 dpiLarge JPEG 3500 x 2617 px | 300 dpiBest Quality JPEG 8463 x 6329 px | 300 dpiTIFF 8463 x 6329 px | 300 dpi | 102.16 MBFree DownloadA coal mine in southern Iowa. Near Ottumwa, off U.S. Highway No. 34. Sourced from the Library of Congress.More