Sajama

Sajama, also known as Nevado Sajama, is Bolivia's tallest peak, reaching 21,463 feet. The Cordillera Occidental is the parent range of the mountain, which is located in the Oruro Department. Sajama, like Illampu Mountain, is part of the Sajama National Park. Sajama, like Illampu, is an extinct stratovolcano, albeit it is unknown when it last erupted. The mountain is conical in shape and features a summit crater that looks to be related to the flat top plateau of Sajama due to its ice, although other sources do not confirm the presence of a crater. Sajama is sandwiched between two climate regimes, one westerly with a dry environment and the Southeast Pacific High, and the other easterly with a moisture atmosphere.

The mountain is characterized by parasitic vents and a coating of lava fragments and volcanic ash below 4,200 meters (13,800 feet). The secondary summits of 5,031 meters (16,506 feet) and 5,161 meters (16,932 feet) west and east-northeast from Sajama are named Cerro Huisalla and Huayna Potosi, respectively. The treeline of the small tree Polylepis tarapacana can be found on the volcano as high as 17,060 feet above sea level, making it one of the highest treelines on the planet. Josef Prem and Wilfrid Kühm, Austrians, made the first climb of the mountain in 1939.

Location: Bolivia

Range: Cordillera Occidental

Elevation: 6550 m | 21490 ft