BackgroundNevado del Sajama, rising to 6542 m about 20 km E of the Chilean border, is Bolivia's highest mountain. The prominent glacier-clad edifice consists of an andesitic stratovolcano overlying andesitic-to-rhyodacitic lava domes. Sajama borders Volcán Cholcani on the SE, and flank centers occupy the saddle between the two peaks. The steep-sided volcano towers about 2200 m above its base, and glaciers descend to about 5600 m. The age of the most recent activity has variously been considered to be Holocene, Pleistocene-Holocene, or Pleistocene, but de Silva (2007 pers. comm.) noted no evidence of Holocene activity.
Source: Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS