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POTD March 5, 2014: Cascade Mountain, Wasatch Range, Utah County, Utah

Cascade Mountain, Wasatch Range, Utah County, Utah
Photographer: Adam McKean; ©2011

The last rays of sunshine catch the snowy southern limestone cliff face of Cascade Mountain, which was glaciated on the northern side during the Ice Age. Wasatch Range, Utah County.

POTD March 4, 2014: Little Cottonwood Canyon, Wasatch Range, Salt Lake County, Utah

Little Cottonwood Canyon, Wasatch Range, Salt Lake County, Utah
Photographer: Mike Hylland; ©2011

The “”wrinkled” surface of a rock glacier on the floor of Maybird Gulch hints at the Ice Age glacial activity that carved this tributary to Little Cottonwood Canyon. Ice below the ground surface, now likely all melted away, once allowed the bouldery deposit to imperceptibly flow down the valley floor, forming the arcuate ridges at the ground surface.

POTD February 24, 2014: Wasatch Range, Utah County, Utah

Wasatch Range, Utah County, Utah
Photographer: Adam McKean; © 2011

A colorful mosaic of fall colors on Provo Peak (11,068 feet), composed of Mississippian- and Pennsylvanian-age rock layers, Wasatch Range, Utah County.

POTD February 18, 2014: Mount Timpanogos, Wasatch Range, Utah County, Utah

Mount Timpanogos, Wasatch Range, Utah County, Utah
Photographer: Grant Willis; ©2011

White traces of early snow dust prominent sandstone and limestone rock layers on Mount Timpanogos and contrast with lower-elevation yellow-tinted aspen trees. The sedimentary rocks are the Pennsylvanian-age Bear Canyon Member of the Oquirrh Formation that have been transported eastward over 30 miles on thrust faults.

POTD October 8, 2013: Wasatch Range, Salt Lake County, Utah

Wasatch Range, Salt Lake County, Utah.
Photographer: Stefan Kirby

A winter storm clears from Superior Peak (11,132 feet) in upper Little Cottonwood Canyon southeast of Salt Lake City. Beneath its thick blanket of snow, Superior Peak is made up of tilted Precambrian-age sedimentary rocks, including the Big Cottonwood Formation and overlying Mineral Fork Tillite.

POTD September 11, 2013: Little Cottonwood Canyon, Wasatch Range, Salt Lake County, Utah

Little Cottonwood Canyon, Wasatch Range, Salt Lake County, Utah
Photographer: Mike Hylland

Ice Age (late Pleistocene) glaciers carved a classic U-shaped valley into granitic rock of the Oligocene-aged Little Cottonwood stock at Little Cottonwood Canyon. Across Salt Lake Valley, the Oquirrh Mountains are home to the Bingham Canyon mine, the largest open-pit copper mine in North America.

POTD August 15, 2013: Lone Peak Wilderness, Wasatch Range, Salt Lake and Utah Counties, Utah

Lone Peak Wilderness, Wasatch Range, Salt Lake and Utah Counties, Utah
Photographer: J. Lucy Jordan

Wildflowers on Lone Peak bloom among quartz monzonite (granitic) boulders of the Oligocene-aged Little Cottonwood stock. Near-vertical cliffs on the skyline form part of the glacier-carved cirque near the summit of the 11,253-foot-high peak.

POTD August 2, 2013: Wasatch Range, Morgan County, Utah

Wasatch Range, Morgan County, UtahPhotographer: Ashley H. Elliott

Glaciated peaks and cirques on the east side of the Wasatch Range

POTD July 22, 2013: Mount Timpanogos, Wasatch Range, Utah County, Utah

Mount Timpanogos, Wasatch Range, Utah County, Utah
Photographer: Jason Berry

Thousands of years of precipitation, wind, and glacial erosion have sculpted the east face of the Mount Timpanogos massif. The steep cliffs and snow-covered ledges of the Oquirrh Formation exposed on Roberts Horn (10,953 feet) are reminiscent of the Canadian Rockies.

POTD July 10, 2013: Wasatch Range, Utah & Wasatch Counties, Utah.

Wasatch Range, Utah & Wasatch Counties, Utah
Photographer: Robert F. Biek

Framed by blooming gray rabbitbrush (Chrysothamnus nauseosus) above the east shore of Deer Creek Reservoir, Mt. Timpanogos is formed of Pennsylvanian-age, shallow- marine limestone and sandstone of the Oquirrh Formation. The small patch of snow is in Cascade Cirque, one of several glacier-carved basins on the east side of the 11,749-foot-tall mountain.