I have had to leave elk overnight due to the fact, its not safe to work on an elk in the dark in the thick of grizzly country. . but we always gut and drag the pile as far away as possible, and the most important thing that gets forgot, is taking the ENTIRE wind pipe out of them. The wind pipe holds so much heat, that meat can spoil even when it is late fall. . A Big problem currently i think, and i know some people are not going like this to much but its true, the whole DIY backpack hunter who is so gung ho to get 5+ miles from the trailhead and prove how tough a hunter they are...There is NO way an entire elk worth of meat is gonna get packed out of there without spoilage if you dont have horses or a pile of friends to help immediately. If you cant get an entire elk out from where it was killed in under 24...48 AT MOST hours, you shouldnt be hunting there. . I passed up an opportunity with my bow on a 340 bull this past fall, because I was alone, with a pack and far enough in that I knew I would not get that bull out no matter how hard I went on back and forth trips, So he got to live another year. I hunt for meat and because its what I love, if i dont harvest, its not the end of the world, but if I harvest just for horns and let meat spoil, I might as well be a poacher.