One alternative is something called a "deer sleigher". I bought mine from Cabelas for about $23, finally got a chance to use it. Dragged 94 pounds of deer about 2 miles, up and down hills. Took me about an hour.

I really like the deer sleigher because it weighs about 2 pounds, and packs nicely in my tree stand frame for the hike in.Slides really well across rocks and leaves, makes pulling the deer over fallen trees easy. Can't wait to use it on snow!

-Rick C.