The small Cerro El Colli lava dome is the easternmost of several emplaced along the Sierra La Primavera volcanic complex eastern caldera rim. Eruption of the Southern Arc lavas began about 60,000 years ago and were accompanied by eruptions of airfall pumice and pyroclastic flows. Southern Arc lavas are generally younger to the east.

Photo by Jim Luhr, 1999 (Smithsonian Institution).

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

Keywords: lava dome

Sierra la Primavera