I liked the movie. Simple story, well acted and filmed, everything understated, not Hollywood style. A couple of “trivia” issues. First, someone with his survival savvy would have been able to figure a pulley system to get the sled up that steep section. Not easy, but I bet I could do it with the materials he had at hand. (He needed to build an anchor at the top so he could use his body weight as a counterweight.) Second, in the scenes at the end there is a large body of water, but there is no water shown on his map, was there?