I once had a tag in 62 that I ended up turning back due to a conflict but not before scrutinizing the maps and terrain. I had developed some plans that I felt really good about but never got the chance to carry out. Basically, find the spots you can't get a quad into and that would be a difficult pack out of. So hit the books and study your way to success, and better yet if you can get at least a weekend scouting trip out there in advance. Lots to do in CO and UT in the area, makes for a great vacation.