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POTD June 20, 2013: Head of Sinbad, San Rafael Swell, Emery County, Utah

 

 

 

 

Head of Sinbad, San Rafael Swell, Emery County
Photographer: J. Buck Ehler

Dutchman Arch guards the path to Devil’s Racetrack, a popular recreation trail in the San Rafael Swell. Named after a local Dutch cattleman, the arch is composed of the Jurassic-age Wingate Sandstone deposited in ancient sand dunes.

POTD June 19, 2013: Little Cottonwood Canyon, Wasatch Range, Salt Lake County, Utah

Little Cottonwood Canyon, Wasatch Range, Salt Lake County
Photographer: Valerie V. Davis

Viewed across Albion Basin from the Secret Lake trail, the southfacing slopes of the Flagstaff Mountain area reveal tilted Cambrian- to Pennsylvanian- age strata. The deformation of these rocks attests to the severe folding, faulting, and tilting undergone by this mountain range.

POTD June 18, 2013: Bryce Canyon National Park, Garfield County Utah

 

 

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.

POTD June 17, 2013: Wilson Arch, San Juan County, Utah

Sixty years of Utah Geology will leave you with A LOT of photos, so we are going to share them with you. Introducing the UGS Photo Of The Day, or POTD for short. Enjoy!

 


San Juan County

Photographer: Michael Vanden Berg

Wilson Arch is probably the most accessible natural arch in southern Utah. It is perched on a cliff of the Jurassic-age Slick Rock Member of the Entrada Sandstone next to Highway 191 half way between Moab and Monticello. North of Moab, the Entrada Sandstone is host to the vast majority of the arches in Arches National Park.