* Location: Andes Mountains, between Peru and Bolivia
* Elevation: 12,000 to 14,000 feet (3,658 to 4,267 meters)
* Area: 100,000 square miles (259,000 square kilometers)
* Climate: cold and dry, with an average temperature of 50°F (10°C)
* Vegetation: sparse vegetation, including grasses, shrubs, and cacti
* Population: Approximately 10 million people, mostly indigenous Quechua and Aymara peoples
* Economy: agriculture (potatoes, barley, quinoa), mining (silver, tin, copper), and tourism
* Patagonian Plateau
* Location: southern Argentina and Chile
* Elevation: 1,500 to 3,000 feet (457 to 914 meters)
* Area: 260,000 square miles (673,000 square kilometers)
* Climate: cool and humid, with an average temperature of 45°F (7°C)
* Vegetation: grasslands, forests, and glaciers
* Population: Approximately 2 million people, mostly of European descent
* Economy: agriculture (wheat, barley, potatoes), livestock (sheep, cattle), and tourism