Alaska Volcano Observatory

The multiple peaks of Trident Volcano as viewed from the top of Baked Mountain in the Valley of Ten Thousand Smokes, Alaska. Trident Volcano is composed of a cluster of andesite and dacite cones and is the only Katmai group volcano other than Katmai and Novarupta to have had historical activity. The Novarupta lava dome is visible at bottom, center. Photograph by R. McGimsey, U.S. Geological Survey, July 12, 1990.

Credit: Image courtesy of AVO / U.S. Geological Survey.
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory/U.S. Geological Survey when using this image.
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