Volcán Ixtepeque, which is named after the Aztec word for obsidian, is seen here from the west. A 4 x 5 km rhyolitic obsidian lava flow field was erupted within the Ipala graben from a NE-trending vent . Obsidian from Ixtepeque has been found at archaeological sites across Central America.

Photo by Lee Siebert, 1993 (Smithsonian Institution).

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

Ixtepeque