The glaciers of Chile cover 2.7% (20,188 km2) of the land area of the country, excluding Antártica Chilena, and have a considerable impact on its landscape and water supply. By surface 80% of South America’s glaciers lie in Chile. Glaciers develop in the Andes of Chile from 27˚S southwards and in a very few places north of 18°30’S in the extreme north of the country. The largest glaciers of Chile are the Northern and Southern Patagonian Ice Fields. Among these is the well known Grey Glacier, located to the west side of the Torres del Paine National Park.