https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12303130Edit ImageSaveSaveEditCropCustom TextMake it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designsProduction. Copper. Large-size motors are required to drive the ball mills at the Magna and Arthur mills of the Utah Copper Company where vast quantities of copper ore are treated. Sourced from the Library of Congress.MoreProduction. Copper. Large-size motors are required to drive the ball mills at the Magna and Arthur mills of the Utah Copper Company where vast quantities of copper ore are treated. 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 901 px | 300 dpiLarge JPEG 3500 x 2629 px | 300 dpiBest Quality JPEG 10233 x 7687 px | 300 dpiTIFF 10233 x 7687 px | 300 dpi | 150.06 MBFree Download