Erosional gullies furrow the surface of pyroclastic-surge deposits from the eruptions forming Ubehebe craters in Death Valley, California. The craters were erupted along a fault that forms the western boundary of the Tin Mountain range in the left background.

Photo by Lee Siebert (Smithsonian Institution).

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

Ubehebe Craters