Pack Mule Clipart Picture http://www.anrdoezrs.net/interactive?nvc_cj=1&aid=10292438&pid=2998518&url=http://www.clipart.com/en/close-up?o=3016715 Surfdoggie's Review: Clipart picture of a pack mule carrying a heavy load on its back. This is a color clip art illustration showing a pack mule with a large package tied to its back. Please visit the link above to find out how you may use these images. You may need to pay for use of the images or abide by certain licensing restrictions. animal, animals, burro, burros, carrying a heavy load, donkey, donkeys, heavy load, mule, mules, pack mule, pack mules, packmule