Aerial view across a vast expanse covered in the White River Ash tephra deposit. This is from the "eastern lobe" eruption, that occurred 846-847 CE (Jensen, 2012). Mt. Churchill is the source vent.
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.