Yes it is legal in Wyoming to “gutless” field dress a big game animal. There are a few restrictions that need to be followed. When “gutless” field dressing a big game animal, you are required to bring out of the field all four quarters, whether shot or not, back straps and inside tender loins. When “gutless” field dressing a big game animal, cut slits along the back and reach in to remove the inside tender loins. It is not considered waste if you leave organs in the field (i.e. heart, liver). If de-boning after “gutless” field dressing, make sure you have all of the meat from the animal in case a warden stops you and weighs the meat you brought out of the field.