Andes
The Andes or Andean Mountains () are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. This range is about long, about wide (widest between 18° south and 20° south latitude), and of an average height of about . The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.
Geology of Chile
The Quaternary glaciations left visible marks in most parts of Chile, particularly Zona Sur and Zona Austral. These include ice fields, fjords, glacial lakes and u-shaped valleys. During the Santa María glaciation glaciers extended into the Pacific Ocean at 42° south, dividing the Chilean Coast Range and creating what is now Chacao Channel. Chiloé, part of the Chilean Coast Range, became an island. South of Chacao Channel, Chile's coast is split by fjords, islands and channels; these glaciers created moraines at the edges of the Patagonian lakes, changing their outlets to the Pacific and shifting the continental divide. The remnants of the Patagonian Ice Sheet which covered large parts of Chile and Argentina are the Northern and the Southern Patagonian Ice Fields.