Sairecabur (Spanish pronunciation: [sajɾekaˈβuɾ]) is a volcano located on the frontier between Bolivia and Chile.

Also in close proximity to Sairecabur lie the volcanic centres Licancabur, Putana and Juriques.

After the formation of this caldera lava effusion occurred during the Pleistocene and Holocene; there is no reported historical activity, however.

An Inca sanctuary has been found on Sairecabur, and sulfur mines exist in the mountain chain.

[5] A number of stratovolcanoes can be found in the area, many of which were affected by explosive eruptions that have destroyed parts of their edifices.

[7] The geologist Juan Brüggen in 1950 estimated that there were about 800 volcanoes in northern Chile, about 37 of them east of the Salar de Atacama.

[14] Sairecabur is located at a distance of 25 kilometres (16 mi) from San Pedro de Atacama.

[12] Laguna Verde lake, Licancabur volcano and Portezuelo de Chaxas pass lie south of Sairecabur.

East of the Sairecabur range lie Mount Nelly and Cerro Laguna Verde.

[16] The Treaty of Peace and Friendship (1904) traced the frontier between Bolivia and Chile along the Sairecabur chain.

[19] Dry valleys on the eastern side of the Sairecabur range ultimately drain into Laguna Verde.

A 4.5-kilometre (2.8 mi) wide caldera exists south of Sairecabur and formed on an older volcano.

[18] Puritama volcano west of Sairecabur has generated 16 kilometres (9.9 mi) lava flows that extend along tectonic canyons.

Other volcanoes in the area such as Lascar-Aguas Calientes, Licancabur-Juriques and La Torta-Tocorpuri also form such alignments which seem to be controlled by north–south tension in the crust.

[36] Minerals include amphibole,[12] biotite, bronzite, calcium-containing augite, clinopyroxene, hornblende, magnetite, orthopyroxene, plagioclase, pyroxene and quartz.

The process started by partial melting of the mantle involving peridotite and subsequent interaction with the crust and fractional crystallization.

[41] The 7 million year-old Chaxas ignimbrite massif has been related to the caldera-forming eruption at Sairecabur.

[33] During the ice ages, a valley due west of the main Sairecabur summit was occupied by a 8-kilometre (5.0 mi) long glacier that extended down to an elevation of 4,600 metres (15,100 ft); the main Sairecabur summit grew inside of the valley occupied by the glacier, which also left lateral and terminal moraines.

[52] The rainshadow effect exercised by the Andes and the stability of the South Pacific High are responsible for this dryness.

[53] The dry and cloudless climate together with the low latitude and high altitude gives the region some of the highest insolations on Earth; at Sairecabur it amounts to 98% of the solar constant.

[48] The coincidence between the southern hemisphere summer solstice on 21 December and the perihelion, the point of lowest Earth-Sun distance, on 3 January contribute to the high insolation.

[68] A 21-kilometre (13 mi) long mining dirt road with a single lane leads from the El Tatio highway to Sairecabur.