Gunmart,
Good suggestions so far. I'll just add my emphasis on a good pair of boots. You never know just how far you'll have to walk and conditions up there can be "real bad." One other thing, take a headlamp style flashlight. Gutting an elk, it took till after dark to catch up to, is a two hands job.
Weather report: Western half of Wyoming above 8000 feet - three inches of snow and rising (At least it was when I came back down) The radio station said the storm covered the state from border to border, guess you'll get your wish. The only question is: will there be any left when elk rifle season rolls around? Regardless, this weather will have them moving around come opening day.
Good luck.
Hey Ron, what's with the ball point pen? Don'tcha know that's why they invented soft point bullets?