An aerial view from near the eastern margin of Mount Rainier National Park shows the volcano rising above glacially eroded terrain of the Ohanapecosh formation, composed of Tertiary volcanic rocks. The smooth, glaciated upper NE flank in this 1992 photo is the location of the post-collapse cone constructed within the failure scarp left by the Osceola debris avalanche and lahar about 5,600 years ago.

Photo by Dave Wieprecht, 1992 (U.S. Geological Survey).

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

Galleries: Stratovolcanoes

Keywords: stratovolcano

Rainier