Well i have one of these Bull Pac Frame that hasn't been used since i left Montana. It worked great when i was a younger man -- probably won't work so good these days. We also have some real nice big heavy game bags, and some rope, that worked good yesteryear.

The forest service allows four wheeler retrieval of elk in designated areas, of which many are. One can go off trail, or off road for 1/4 mile to tie onto your elk, and drag it to the road/trail. Access to a machine would be a good thing.