The multi-colored scoria deposits of the eastern side of Crescent Crater, part of the cinder and spatter cone complex at Ice Springs volcanic field, are the object of a mining operation to produce road aggregate. Ice Springs was the source of Utah's youngest lava flow about 660 years ago.

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