I've been wearing the FSN 95 GTX for a while and I love the boot. I could go running in the thing and feel great. It's not the most insulated boot around though. So, depending on when you are going up there I'd really consider a heavier boot with more insulation. The GTX is great if the temps aren't too low, but not for the really cold stuff. In colder temps I wear a La Sortiva Glacier. It's a heavier boot for sure, but holds up great in Rocky Mountian winters. Hope this helps you out!