• Spires of Cedar Mesa sandstone in Chesler Park (Needles District)

    Canyonlands

    National Park Utah

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  • Extreme Fire Danger

    Due to extremely dry conditions, fire restrictions are in effect in all national park units in Utah. More »

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    Hard-sided bear containers are required for backpackers in parts of the Needles District. More »

Mancos Shale

photo: Slopes of mancos shale
Slopes of mancos shale
 

This layer does not occur in Canyonlands, but may be seen north of the park as slopes below the Book Cliffs on Interstate 70 between Green River, UT and Grand Junction, CO.

Deposited:
Mid-Cretaceous (64 to 144 million years ago)

Depositional Environment:
Near-shore regimes (e.g. tidal flats)

Appearance:
Slope forming, gray shales

Example:
Floor of Cache Valley in Arches National Park

Did You Know?

Spanish Bottom on the Colorado River

At Spanish Bottom on the Colorado River, scientists discovered 260 feet of sediment below the water's surface. This could make Cataract Canyon one of the most actively filling canyons in the world. More...