I havent rode in that area, but I have rode at Rabbit Ears pass and Buffalo pass out of Steamboat Springs, Coloardo for four years and it will blow your mind the riding is so good. I dont know if where you are going if there are a lot of trails, but I can tell you that I wouldnt take a 121 inch track out there. You wouldnt go 50 feet off trail and you will be stuck. If you take one of your sleds you will need to re-jet and also re-clutch for the altitude. If you have any questions I might be able to help. Have fun out there, I am leaving for Steamboat January 2