https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12286164Edit ImageSaveSaveEditCropCustom TextBlasting crew boring into vein with horizontal drill for dynamiting. Mahoning pit, Hibbing, 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 913 px | 300 dpiLarge JPEG 3500 x 2664 px | 300 dpiBest Quality JPEG 13832 x 10529 px | 300 dpiTIFF 13832 x 10529 px | 300 dpi | 138.91 MBFree DownloadBlasting crew boring into vein with horizontal drill for dynamiting. Mahoning pit, Hibbing, Minnesota. Sourced from the Library of Congress.More