The western part of Patagonia is formed by the Andes Cordillera, which represents an insurmountable barrier in some sections. The winds blow from the Pacific in an almost unchanging direction. The clouds they bring accumulate above the high mountain peaks and cause abundant precipitation. This explains why, despite their low altitude, glaciers of sometimes enormous dimensions extend along the eastern flank of the Andes. In the Los Glaciares National Park (Santa Cruz Province) lies the Argentino, the Silver Lake, one of the most beautiful lakes in this southern region. The town of Calafate on its southern shore is visited by more and more tourists. Several glaciers can be seen nearby. One is called Uppsala and is 40 kilometres long. An equally famous one is called Perito Moreno. Navigation on the Silver Lake is dangerous, if only because of the wind and the storms that are frequent in the Cordillera. Nature, preserved in its authenticity, attracts many scientists who can devote themselves to their studies here. - 1973
