Uinta Basin Photomicrograph. Photo by Michael Vanden Berg.

Photomicrograph of limestone from the Eocene-age Green River Formation showing small ostracod shells surrounding and filling larger
gastropod fossils.

Nine Mile Canyon Road, Carbon County, Utah. Photo by Emily Kleber.

Cliffs of deltaic sandstone in the Eocene-age Green River Formation tower over Nine Mile Canyon, an area rich in geologic and human history.

Near Dead Horse Point State Park, Grand County.
Photo by Jessica Castleton.

Near Dead Horse Point State Park, Grand County.

Kane Gulch, San Juan County.
Photo by Andy Cvar.

Corrugated, conchoidal fracture pattern in blocks of Cedar Mesa Sandstone. The sandstone was deposited during the Early Permian in a trade-wind-blown sand sea.

Corrugated, conchoidal fracture pattern in blocks of Cedar Mesa Sandstone. The sandstone was deposited during the Early Permian in a trade-wind-blown sand sea.

Great Salt Lake and Antelope Island, Salt Lake County.
Photo by Adam Hiscock.

Great Salt Lake and Antelope Island, Salt Lake County.

Horseshoe Springs, Skull Valley, Tooele County
Photo by Jim Davis.

Warm, brackish groundwater issues from the Skull Valley faults at the western foot of the Stansbury Mountains to produce Horseshoe Springs—two springs that join to create a horseshoe shape.

Horseshoe Springs, Skull Valley, Tooele County Photo by Jim Davis. Warm, brackish groundwater issues from the Skull Valley faults at the western foot of the Stansbury Mountains to produce Horseshoe Springs—two springs that join to create a horseshoe shape.

Mineral Mountains, Beaver County
Photo by Christian Hardwick

Miocene-age granite in the Mineral Mountains glows as the sun sets over the distant San Francisco Mountains near Milford.

Miocene-age granite in the Mineral Mountains glows as the sun sets over the distant San Francisco Mountains near Milford.

Colorado River near Moab, Grand County
Photo by Jessica Castleton.

 

 

Near Moab, Grand County
Photo by Greg McDonald © 2019

Composed of Jurassic-age Navajo Sandstone, wind-sculpted Corona Arch stands before snow-covered cliffs of the same formation. This arch was formed from the same weathering process and during the same time as the world-famous features in nearby Arches National Park.

 

Bonneville Salt Flats, Silver Island Mountains, and Pilot Peak, Box Elder County

Photographer: Ken Krahulec © 2018