Colachi (left) is an andesitic-dacitic stratovolcano whose most recent activity produced pristine silicic lava flows of probable Holocene age. The largest of these covers a 7 km² area on the saddle between Colachi and the neighboring volcano of Acamarachi (center horizon). This aerial view from the west also shows the conical peak of Aguas Calientes (far right), a twin volcano of Lascar volcano, whose slopes appear at the lower right. The Talabre valley in the center foreground is partially filled by an andesitic lava flow from Lascar.

Photo by Insitituto Geográfico Militar, courtesy of Oscar González-Ferrán (University of Chile).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Cerro Overo

Láscar

Colachi