Vibrant orange sand contrasts with sculpted Jurassic-age Navajo Sandstone within a large wind-eroded pothole informally referred to as the Cosmic Navel and more scientifically as the Inselberg Pit. The feature is the largest known cylindrical sandstone weathering pit on Earth. Escalante National Monument, Garfield County. Photo by Michael Vanden Berg.
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Entries by Utah Geological Survey
Along the Green River, Dinosaur National Monument, Uintah County, Utah. Photo by Jen Miller.
Henry’s Fork, High Uintas Wilderness, Summit County, Utah. Photo by Christian Hardwick. Morning sun casts light on the reddish-brown and grayish-red sandstone, shale, and siltstone of the Precambrian-age formation of Red Castle in the Uinta Mountain Group. Ice-age glaciers carved the broad valleys and basins of the Uinta Mountains.
Turret Arch, Arches National Park, Grand County, Utah. Photo by Adam McKean.
Zion National Park, Washington County, Utah. Photo by Marshall Robinson. Beautiful hanging gardens decorate an alcove in Jurassic-age Navajo Sandstone along the Riverside Walk trail at the mouth of The Narrows in Zion National Park. Rainwater seeps down through porous sandstone until it flows laterally along a less-porous rock layer, ultimately trickling out of the canyon […]
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.
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.
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The Utah Geological Survey (UGS) is a division of the Utah Department of Natural Resources. Several specialized programs comprise the UGS: Energy & Minerals, Geologic Hazards, Geologic Information & Outreach, Geologic Mapping, Groundwater & Wetlands, and Paleontology.
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