Global Volcanism Program | Image GVP-02998
Mount Jefferson is seen to the south from Olallie Butte. The Three Sisters and Broken Top volcanoes are on the horizon to the left. Within 15 km from the main edifice domes and lava flows have erupted from at least 35 vents.
Photo by Lee Siebert, 1995 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.