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.
Zona Austral
An important transverse mountain range of the Andes separates the valleys of the rivers Simpson and Ibañez. This section is dominated by the active Hudson volcano and the jagged Cerro Castillo.