In the area I hunt, it is a lot of BLM land and though there are some old roads, no vehicles are permitted. And that means 4 wheelers as well. It's not uncommon to shoot a deer two, three or four miles back in from the closest road. And that is a long hike! That's what makes the difference between "venison" and "DEER" meat. When you pack it out several miles, it becomes very "dear".
OK, a great solution is a cart. They make excellent carts with one or two wheels. Which is best? I'm sure they both have advantages, but which is ultimately better to use; a one or two wheeled cart?