The summit of North Sister provides a panorama of Cascade volcanism that includes, from left to right, lava flows of the McKenzie Pass area in the foreground, the low Belknap shield volcano, the eroded summit pinnacles of Mount Washington and Three Fingered Jack volcanoes, and snow-capped Mount Jefferson to the upper right.

Photo by Lee Siebert, 1984 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: stratovolcano | shield volcano

Three Sisters