Alaska Volcano Observatory

Aerial view of the Mt. Churchill caldera. The high point on the left is the summit of Mt. Churchill, which forms the western wall of the caldera, the depression in center of image. This was the source of the White River Ash, the product of two large eruptions (63 CE and 846-847 CE).

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