San Rafael Reef facts for kids

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Quick facts for kids San Rafael Reef
Western San Rafael Reef, Utah, looking south
Highest point
Geography
San Rafael Reef Location in Utah
Location	Emery County, Utah

Upturned strata forming the San Rafael Reef south of Interstate 70, Emery County, Utah.

The San Rafael Reef is a geologic feature located in Emery County in central Utah, part of the Colorado Plateau. Approximately 75 miles (120 km) long, it is the name given to the distinctive eastern edge of the San Rafael Swell. Composed primarily of steeply tilted layers of Navajo and Wingate Sandstone, it has been eroded into tall fins, domes, cliffs, and deep canyons.

The San Rafael River, Interstate 70, and Muddy Creek all cut through the San Rafael Reef. There are also numerous slot canyons that twist their way through the flanks of the San Rafael Reef, among them Crack Canyon, Chute Canyon and Straight Wash. These spectacularly beautiful canyons are often just a few feet wide and can be hundreds of feet deep.

Shadows of contrails over San Rafael Reef —
San Rafael Swell, Reef (perimeter), and San Rafael Desert at south & southeast. The Reef is most of the southeast, and east perimeter of the 45-mile-wide (72 km) (west-to-east) San Rafael Swell, which trends southwest-by-northeast.
Approach to the San Rafael Reef's eastern end, from Interstate 70, which crosses through the Reef onto the San Rafael Swell, east-to-west looking.
Interstate 70 cuts through the impressive San Rafael Reef from the east.

Wilderness

The eastern edge of the San Rafael Swell Recreation area is protected as the San Rafael Reef Wilderness, designated in 2019 by the U.S. Congress. The 60,442 acre wilderness area is managed by the U.S. Bureau of Land Management.

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