Global Volcanism Program | Image GVP-08179

Early spring snows linger on the dramatic spine of Mount Washington, seen here from the east, north of Santiam Pass. Washington is of several major Pleistocene Cascade volcanoes, including Mount Thielsen, North Sister, and Mount Jefferson, whose resistant central conduit has been exposed by erosion. Photo by Lee Siebert, 2000 (Smithsonian Institution).

Early spring snows linger on the dramatic spine of Mount Washington, seen here from the east, north of Santiam Pass. Washington is of several major Pleistocene Cascade volcanoes, including Mount Thielsen, North Sister, and Mount Jefferson, whose resistant central conduit has been exposed by erosion.

Photo by Lee Siebert, 2000 (Smithsonian Institution).

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

Washington