Ollagüe (Hispanicized spelling) or Ullawi is a massive andesite stratovolcano in the Andes on the border between Bolivia and northern Chile, within the Antofagasta Region of Chile and the Potosi Department of Bolivia. Part of the Central Volcanic Zone of the Andes, its highest summit is 5,868 metres (19,252 ft) above sea level and is capped by a summit crater that opens to the south. The western rim of the summit crater is formed by a compound of lava domes, the youngest of which features a vigorous fumarole that is visible over large distances.
Ollagüe is mostly of Pleistocene age. It started developing over one million years ago, forming the so-called Vinta Loma and Santa Rosa series mostly of andesitic lava flows. A fault cut into the edifice and caused two large landslides. Later two groups of lava domes formed, the Ch'aska Urqu on the southeastern slope and the La Celosa on the northwestern. Both are formed by dacite. Another centre named La Poruñita formed at that time on the western foot of the volcano, but it is not clear whether it is part of the main Ollagüe system. Activity at the summit continued during this time, forming the El Azufre sequence.
This phase of edifice growth was interrupted by a major collapse of the western flank of Ollagüe. Debris from the collapse spread in the form of hummocks down the western slope and into the adjacent salar, splitting it in two. The occurrence of this collapse was perhaps facilitated by a major crustal lineament that crosses Ollagüe from southeast to northwest.
Later volcanic activity filled up the collapse scar, forming the Santa Cecilia series. This series includes lava flows as well as a compound lava dome on the western rim of the summit crater, which represent the youngest volcanic activity of Ollagüe. Later glaciations have formed moraines on the volcano.
While there is no clear evidence of historical eruptions at Ollagüe, the volcano is considered to be potentially active and is monitored by SERNAGEOMIN. Hydrothermal alteration has formed sulfur deposits on the volcano, which is the site of several sulfur mines.
By elevation Volcán Ollagüe is
# 18 out of 410 in Provincia de El Loa # 79 out of 10580 in Chile # 20 out of 973 in Región de Antofagasta # 33 out of 3781 in Bolivia # 2 out of 232 in Provincia Nor Lípez # 11 out of 1235 in Potosí
By prominence Volcán Ollagüe is
# 5 out of 410 in Provincia de El Loa # 39 out of 10580 in Chile # 7 out of 973 in Región de Antofagasta # 8 out of 3781 in Bolivia # 1 out of 232 in Provincia Nor Lípez # 3 out of 1235 in Potosí
We use GPS information embedded into the photo when it is available.
3D mountains overlay
Adjust mountain panorama to perfectly match your photos because recorded by camera photo position might be imprecise.
Choose which peak labels should make into the final photo and what photo title should be.
This 3D model of Sagarmatha National Park in Nepal was made using the PeakVisor app topographic data. The mobile app features higher precision models worldwide, more topographic details, and works offline. Download PeakVisor maps today.
Download OBJ model
The download should start shortly. If you find it useful please consider supporting the PeakVisor app.
PeakVisor for iOS and Android
Be a superhero of outdoor navigation with state-of-the-art 3D maps and mountain identification in the palm of your hand!