Global Volcanism Program | Image GVP-06617

Sparsely vegetated andesitic lava flows issued from South Twin Butte, the tree-covered cinder cone in the background. The two Twin Butte cinder cones and associated lava flows are part of a broad area of little-known youthful Quaternary volcanic features north of Lassen Volcanic National Park. Photo by Lee Siebert, 1998 (Smithsonian Institution).

Sparsely vegetated andesitic lava flows issued from South Twin Butte, the tree-covered cinder cone in the background. The two Twin Butte cinder cones and associated lava flows are part of a broad area of little-known youthful Quaternary volcanic features north of Lassen Volcanic National Park.

Photo by Lee Siebert, 1998 (Smithsonian Institution).

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Twin Buttes