Tag Archive for: POTD

Big Cottonwood Canyon, Wasatch Range, Salt Lake County
Photographer: Liz Paton

On the east slope of Mt. Millicent (10,452 feet), Lake Mary occupies part of a basin carved by Ice Age glaciers. The surrounding peaks are composed of granitic rock of the Tertiary-age Alta stock.



Garfield County
Photographer: Michael Vanden Berg

Windows form within the Tertiary-age Claron Formation as wind and water erode the brightly colored sandstone and siltstone into fins and hoodoos at Bryce Canyon National Park. Thor’s Hammer, the official icon of the Utah Geological Survey, is visible in the lower-right corner.