Global Volcanism Program | Image GVP-02953
The youngest eruption of the Indian Heaven volcanic field, midway between Mount St. Helens and Mount Adams, produced a large scoria cone and a voluminous lava flow about 9,000 years ago. The source of the flow is the cone to the right, with Mount Hood visible in the background. The Big Lava Bed flow, which forms the slope in the foreground, banked against higher slopes to the north and traveled 13 km S to within 8 km of the Columbia River.
Photo by Lee Siebert, 1995 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.