Ixpaco crater is a 1-km-wide maar on the NW flank of Tecuamburro that formed during an explosive eruption about 2,900 years ago. An acidic lake fills the maar, and fumaroles, acid-sulfate hot springs, and mud pools occur around the lake. Colloidal sulfur turns the lake a milky green color. This view is from the north with the forested lava domes of Cerro Miraflores (left) and Cerro Pena Blanca (right) in the background.

Photo by Lee Siebert, 1988 (Smithsonian Institution).

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

Keywords: maar | crater

Tecuamburro