A young scoria cone rises above the glacier-filled summit crater of 3621-m-high San Pedro stratovolcano, viewed here from the NW. The San Pedro-Pellado complex was constructed within the 6 x 12 km Río Colorado caldera, which formed during an eruption about 0.5 million years ago. San Pedro volcano itself is of Holocene age. No historical eruptions have been recorded from San Pedro-Pellado, but fumaroles are found SE of Pellado.

Photo by Oscar González-Ferrán (University of Chile).

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

San Pedro-Pellado