ORIGINAL: johnnybravoo77
It depends. One solution is to first gut the deer. Then tie the right front leg to the right rear leg with rope. Tie the left front leg to the left rear leg. Prop the deer up against something. Sit down and slip your right arm through the loop formed by the two right legs; slip your left arm through the loop formed bythe two left legs. Stand up and lift the deer like a backpack. This works if the deer is not too heavy. Where I hunt in Oklahoma gutted deer may weigh just 100 LBS or less, and this technique works.
Of course you may get shot on the way out!
I have had to do this a couple of times when hunting the state WMA. I always pack my rifle and climber out first, then return for the deer. I am wearing cooler clothes and a lot more orange on the second trip. I even put an orange bag on the deer's head and whistle "Happy Birthday" on the way out.