Global Volcanism Program | Image GVP-05335

Image GVP-05335

The 4.5-km-wide Ugashik caldera formed during the late Pleistocene. Five Holocene lava domes are in the caldera, seen here from the east with Upper Ugashik Lake in the background. Photo by Betsy Yount (Alaska Volcano Observatory, U.S. Geological Survey).

The 4.5-km-wide Ugashik caldera formed during the late Pleistocene. Five Holocene lava domes are in the caldera, seen here from the east with Upper Ugashik Lake in the background.

Photo by Betsy Yount (Alaska Volcano Observatory, U.S. Geological Survey).

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

Galleries: Calderas

Keywords: caldera | lava dome

Ugashik-Peulik

Due to the US Government shutdown, the Smithsonian is temporarily closed. The Global Volcanism Program website will remain available but will not be monitored or updated. Status updates will be available on the Smithsonian homepage.

Image GVP-05335