It could be a cross I guess but it sure looks pureblood Mulie to me. The ears, butt, tail and everything else are indicative of mule deer. The antlers on younger mule deer look just like that too. Most crosses don’t have whitetail antlers/mule deer body, etc. like people generally think.
I think the best way to tell is the location of the metatarsal (sp?) glands on the hind legs.
