Global Volcanism Program | Image GVP-09469
Pyre Peak was constructed within a 3-km-wide caldera and is seen from near the western tip of Seguam Island. The 11.5 x 24 km island contains two calderas, each with a Holocene cone. A third Holocene cone is at the eastern end of the island. The cone rises 1 km above the caldera floor and has been the source of many of the historical eruptions.
Photo by Steve Ebbert, 1996 (U.S. Fish and Wildlife Service).
This image is made available as a Public Domain Work, but proper attribution is appreciated.