Global Volcanism Program | Image GVP-09652
The Pleistocene-to-Holocene Mount Edgecumbe volcanic field covers about 260 km2 of Kruzov Island west of Sitka in the SE panhandle of Alaska. This aerial view shows oxidized scoria of the Edgecumbe volcano in the foreground. Crater Ridge in the background contains a 1.6-km-wide, 240-m deep caldera. And rhyolite domes (top right) The youngest eruptions from Mount Edgecumbe, the largest feature in the Edgecumbe field, are about 4,000 years old.
Photo by Jim Riehle (U.S. Geological Survey, Alaska Volcano Observatory).