Great Sitkin in the Andreanof Islands is seen here from Finger Bay on Adak Island. The edifice was constructed within a caldera, part of which forms the high snow-covered peak to the right. The post-caldera cone contains a 0.8 x 1.2 km ice-filled summit crater. The rim forms the irregular summit on the left horizon. A lava dome 400-600 m wide was emplaced through a glacier in 1945.

Photo by Fred Zeillemaker, 1982 (U.S. Fish and Wildlife Service, courtesy of Alaska Volcano Observatory).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Keywords: stratovolcano

Great Sitkin