The summit of Cerro Negro de Mayasquer volcano is truncated by a caldera that is breached to the west. This view from the NW shows snow-capped Volcán Chiles at the upper left. Eruptive activity at these twin volcanoes has migrated to the west, with the most recent eruptions occurring from Cerro Negro de Mayasquer. A small crater lake is found at the bottom of the 900 x 1500-m-wide caldera. An eruption that was reported from the volcano in 1936 may actually have been from Reventador volcano to the SE.

Photo by Minard Hall, 1985 (Escuela Politécnica Nacional, Quito)

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

Chiles-Cerro Negro