The Andes, Andes Mountains or Andean Mountains are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is 7,000 km (4,350 mi) long, 200 to 700 km wide, and has an average height of about 4,000 m (13,123 ft). The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.