This seems to be the most applicable training program I have seen for mountain hunting.
Part 1: Mike Prevost: Ruck Training Programs - PART 1 - On Target Publications
Part 2: Mike Prevost: Ruck Training Programs - PART 2 - On Target Publications
Part 1: Mike Prevost: Ruck Training Programs - PART 1 - On Target Publications
Part 2: Mike Prevost: Ruck Training Programs - PART 2 - On Target Publications