I use to think, "get it off the mountain fast because it's so hot". Then it occurred to me that the higher I am the cooler it is. It usually gets in the 30's higher up in the mountains in Sept. and definitely in Oct. Why take it "down" when it only gets hotter the lower I go. If I have the time, I prefer to find the coolest, shadiest spot I can get to easily, skin it out, bag it to stop the flies, and let it hang overnight. By morning it is well cooled and set up. (I haven't spent a lot of time hunting in what is considered serious bear country, so that would be a game changer.) If I'm that far back in, I have already figured a plan to bring my deer cart at least part way before hand, or have a route planned to bring it in after the kill. Especially if we're after elk, we get the cart as close as possible, and then bone the elk out, pack it to the cart, and walk out. For deer, we can just bring it out whole if we choose to. Depends on how nasty the terrain is. Once you get it home, if the days are hot and the nights are cool, you can can keep meat cold by wrapping it up in a sleeping bag in the day time and unwrapping it at night, as long as you have it hanging in a cool shady spot or even laying on a cold cement floor. I have done this for almost a week with no problem.