The flat floor of the 3-km-wide caldera of Pululagua volcano is used for agricultural purposes. This view from the SE caldera rim looks across to Loma El Lavadero on the NE rim, 700 m above the caldera floor. Pululagua's caldera was formed during major explosive eruptions about 2400 years ago that produced plinian airfall deposits, pyroclastic flows, and pyroclastic surges.

Photo by Lee Siebert, 1978 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Pululahua