I would check the state's or province's rules for that. It may vary, but usually you must keep some portion that identifies what sex the game was, and of course keep the tag. Should keep the rack too, to prove it was legal. In most states when transporting game, the tag must be attached to that game animal, regardless of whether its gutted, skinned or butchered.
As Cowgal said that would be a provincial law. Saskatchewan uses a two-tag system, for every licence you're issued a meat seal and a head/hide seal. The meat seal must remain affixed until butchering, the head/hide seal must remain affixed until min 31 Mar.
Every year many hunters and outdoorsman and women come out west from the midwest and east coast to hunt the prized mulies and elk. One topic that comes up often is altitude sickness. My advice for flatlanders is to get into the best possible shape. Start months before your hunt, usually really ramping up my cardio around March or April.
I run 5-10 miles 3 times a week, and also go for walks carrying my pack with about 50lbs to simulate what could be on my back. Another useful tip is to drink A...