Southern Patagonian Ice Field in the area, among which are the Upsala (765 km), Viedma (978 km) and Perito Moreno (258 km) in the Los Glaciares National Park in Argentina, and the Pío XI Glacier or Bruggen Glacier (1,265 km, the largest in area and longest in the southern hemisphere outside of Antarctica), O'Higgins (820 km), Grey (270 km) and Tyndall (331 km) in Chile. The glaciers going to the west flow into the fjords of the Patagonian channels of the Pacific Ocean; those going to the East flow into the Patagonian lakes Viedma and Argentino, and eventually, through the rivers "de la Leona"
Monte Desert the aridity of the region and the formation of the Monte and other nearby deserts. Although a difference between this desert and the other two deserts is the lack of intensity of effect from the cold water currents off the South American coast for the Monte Desert. This allows the desert to support a wider variety of life than the other two more extreme deserts. The flora of the region is much more diverse than the nearby Patagonian Desert (which contains mainly shrubs and grasses) and the Atacama Desert (which is pretty much devoid of life). Shrubs and grasses are