Global Volcanism Program | Image GVP-04039
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).