That scenario happened in Turkey a few years ago when an Air Force officer, who was stationed there with his family, and his son were skiing at a resort and became disoriented in a blizzard. They ended up in a survival situation for several days and the father ultimately left the son in a animal den type shelter and went for help. The father was found in an abandoned camp by a group of local hunters/loggers (something like that). I have the book stuffed in storage somewhere. link to "Miracle on the Mountain" at Amazon.com