The Lava Mountain pyroclastic cone complex (left-center), seen here looking N from Green Mountain, forms a prominent topographic high on a shield volcano and lava field. This late Pleistocene lava fiel is the middle of a group of three young basaltic fields in the High Lava Plains SE of Newberry volcano. Lava flowed in all directions for distances up to 6 km from the summit cone complex, surrounding older cones such as the lighter colored Twin Buttes (right).

Photo by Lee Siebert, 2000 (Smithsonian Institution).

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

Lava Mountain