It took me a couple of days to build up my ski legs, as well as my courage, just to get to this stash location. Once there, I found the perfect spot. I trust you will have a similar sense of accomplishment when you find this stash, regardless of whether you are wearing ski boots or hiking boots.
In regards to the degree of difficulty, you should know that it's a "Black Diamond" in winter.
For more info about this stash see http://www.travelbygps.com/geocache.htm
Obligatory list of potential dangers: exposure, altitude sickness, wildlife encounters, and loose footing.