https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12170131Edit ImageSaveSaveEditCropCustom TextMules with guards around their muzzles to keep them from eating while working, near Vian, Oklahoma by Russell LeeView public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 858 px | 300 dpiLarge JPEG 3500 x 2502 px | 300 dpiBest Quality JPEG 4287 x 3064 px | 300 dpiTIFF 4287 x 3064 px | 300 dpi | 25.05 MBFree DownloadMules with guards around their muzzles to keep them from eating while working, near Vian, Oklahoma by Russell LeeMore