https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12324801Edit ImageSaveSaveEditCropCustom TextTiff mines are crude holes in ground usually ten to fifteen feet deep. Washington County, Missouri. 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 912 px | 300 dpiLarge JPEG 3500 x 2659 px | 300 dpiBest Quality JPEG 13937 x 10587 px | 300 dpiTIFF 13937 x 10587 px | 300 dpi | 281.77 MBFree DownloadTiff mines are crude holes in ground usually ten to fifteen feet deep. Washington County, Missouri. Sourced from the Library of Congress.More