RE: Deer Cart?
Personally, I think it's much easier than dragging. You can step inside the front end and put the bar across your chest, then just walk. For the downhills just turn the cart around and let gravity do the work. If it's really steep, i suppose you could tie a rope on and pull it up, using a tree as an anchor. It might be hard to balance the cart just right to do that, though. Not many really steep hills in this neck of the woods. Hope that helps!