I moved three of my snakes from KS to CO just three weeks ago. They went from 800' to 6,500' (I was just at 13,470 today, myself - hiked up Horn Peak in the Sangre de Cristo Range in southern CO). They are fine and the two that are good eaters have each eaten two rats and shed since getting here, not to mention that I beleive that the one that is breeding size has locked with the male that came from KS with her (the male is a picky eater and the fact that he hasn't eaten isn't surprising, especially given that he is being paired with two females right now). Good luck with the move.