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.
Antofalla
Antofalla is part of the Central Volcanic Zone of the Andes, which runs along the border between Argentina and Chile and whose main expression occurs in the Western Cordillera. The volcanoes of the Central Volcanic Zone lie at high altitudes, and the volcanic zone spans the countries of Argentina, Bolivia, Chile and Peru. Present-day activity in the Central Volcanic Zone occurs at Lascar and Lastarria, and about 44 centres have been active in the Holocene. Aside from stratovolcanoes, calderas with large ignimbrites are also part of the Central Volcanic Zone; the Altiplano-Puna volcanic complex is a complex of such large calderas.