About Utah Geological Survey
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Entries by Utah Geological Survey
Near the base of Notch Peak, pink Jurassic-age granite intrudes much older thinly bedded gray argillite and white marble of the Cambrian-age Marjum Formation. Deep in the Earth’s crust 170 million years ago, high heat and fluids from the granite metamorphosed the surrounding rock, turning limestone into marble and shale into argillite. House Range, Millard […]
Carmel Canyon Trail, Goblin Valley State Park, Emery County. Photo by Adam McKean.
A goblet-shaped hoodoo formed in sandstone of the Early Cretaceous-age Burro Canyon Formation. The top is cemented by silica, making it more resistant to weathering than the softer rock at the base. Near Blanding, San Juan County, Utah. Photo by Don DeBlieux.
Dead Horse Point State Park, Grand County. Photo by Michael Vanden Berg.
Buckskin Gulch—the longest and deepest slot canyon in the United States—cuts through Jurassic-age Navajo Sandstone. Deposited as an erg, or a sand-dune sea, the Navajo Sandstone contains beautifully preserved cross-beds. Buckskin Gulch, Kane County. Photo by Adam Hiscock.
POPULAR POSTS & PAGES
- Rock & Mineral Collecting Sites
- The Rockhounder: Dugway Geode Beds, Juab County
- Glad You Asked: What are Those Lines on the Mountain? From Bread Lines to Erosion-Control Lines
- Glad You Asked: Ice Ages – What are they and what causes them?
- The Rockhounder: Topaz and other minerals found at Topaz Mountain, Juab County
- Glad You Asked: Igneous, Sedimentary, & Metamorphic Rocks
- Commonly Asked Questions About Utah's Great Salt Lake & Lake Bonneville
- Geologic Maps
LEARN MORE ABOUT THE UTAH GEOLOGICAL SURVEY
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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