Forest service is usually pretty unhelpful when it comes to that type of thing...They will just tell you to look up the outfitters in the area...they might go as far as telling you the outfitters in the area..Basically stuff you can do on your own. Call outfitters, ask if they will do game retrieval. Most in that area wont because they are plenty busy with their own clients and stuff, and dont have the man power to do that. But there are a few down there im sure that didnt book enough clients and would have the ability to do it. Just gotta get on the phone and make some calls...gonna be hard to get them on the phone with seasons starting up and camps being set up etc...Search for alpine/afton/thane/star valley located outfitters...and start dialing #'s is gonna be your best bet to do it legally.