The inconspicuous hill on the left-center horizon to the SW is Ice Springs volcano, part of the Black Rock Desert volcanic field in central Utah. The black area extending across the photo from the cinder cone complex is a 660-year-old basaltic lava flow from Ice Springs volcano. An additional NNE-SSW chain of small volcanic vents is located NE of the main vent complex. The volcanic fields in the Black Rock Desert area were first described by pioneering U.S. Geological Survey geologist G.K. Gilbert in the late 19th century.

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