Arriving at the Grupo de los Cien Hut, Iztaccihuatl

At 4585m (15,042 ft.), the Grupo de los Cien hut was the highest altitude I had ever slept at. I didn't think it would be a problem, but I was wrong! I did not get sick, but I felt quite nauseous and had a very sleepless night indeed. It was exactly the acclimating I would need for Pico de Orizaba, where I felt pretty good throughout. Photo by Laszlo Hulicsko, March 17, 2006