The rugged surface of the Jom-Bolok lava flow fills the valley of the Oka River. The massive Holocene lava flow traveled 70 km from its source, a scoria cone of the Jom-Bolok volcanic field near the Oka Plateau west of Lake Baikal.

Photo by Jim Luhr, 1991 (Smithsonian Institution).

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

Keywords: lava flow

Jom-Bolok