It can be rough
I hunted for years around timberline in and around the Maroon Belles in Colorado
Everyone is "In Shape" until you hit that 10,000 foot level where the air and the trees thin out

We used to camp at 7300' and then pitch a spike camp up higher around 9000'





Water lots of water helps, but once you get into the highs it can hit you hard


Slaying Orcs