Farmlands encroach on the eastern margin of the Ice Springs lava flow, Utah's youngest. The 660-year-old lava flow originated from a complex of cinder and spatter cones and extends a maximum distance of 8 km from its source. The flow contains abundant xenoliths of partially fused granite.

Photo by Lee Siebert, 1996 (Smithsonian Institution).

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

Black Rock Desert