Mt. San Lorenzo is located right on the border between Argentina and Chile, in the northernmost part of Santa Cruz. Reaching a height of 3,706 meters (12,159 ft), this mountain covered by three glaciers is one of the most important ones in Patagonia.
Mt. San Lorenzo was first climbed by the Salesian priest Alberto De Agostini in 1943, when he was 60, accompanied by two guides from Bariloche.