Monte Fitz Roy (also known as Cerro Chalten, Cerro Fitz Roy, or simply Mount Fitz Roy) is a mountain located near El Chalten village, in the Southern Patagonian Ice Field in Patagonia, on the border between Argentina and Chile. First climbed in 1952 by French alpinists Lionel Terray and Guido Magnone, it remains among the most technically challenging mountains on Earth for mountaineers. Monte Fitz Roy is the basis for the Patagonia clothing logo following Yvon Chouinard's ascent and subsequent film in 1968.