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Global Volcanism Program | Image GVP-05306

Fourpeaked volcano to the upper left is one of a group of poorly known volcanoes NE of Katmai National Park. Much of the surface is hidden beneath Fourpeaked Glacier; the few exposed outcrops are lava flows interlayered with volcanic agglomerate. Rocks near the summit are extensively hydrothermally altered. In the foreground is the 2.5-km-wide Kaguyak caldera. Photo by Chris Nye (Alaska Division of Geological and Geophysical Surveys, Alaska Volcano Observatory).

Fourpeaked volcano to the upper left is one of a group of poorly known volcanoes NE of Katmai National Park. Much of the surface is hidden beneath Fourpeaked Glacier; the few exposed outcrops are lava flows interlayered with volcanic agglomerate. Rocks near the summit are extensively hydrothermally altered. In the foreground is the 2.5-km-wide Kaguyak caldera.

Photo by Chris Nye (Alaska Division of Geological and Geophysical Surveys, Alaska Volcano Observatory).

Keywords: caldera | lake | lava dome | crater lake


Fourpeaked

Kaguyak