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Canyonlands National Park Seedling in Biological Soil Crust
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Canyonlands National Park
Green River Formation
 

This layer does not occur in Canyonlands.

Deposited
Early Tertiary Period (1.6 to 66 million years ago)

Depositional Environment
Lakes

Appearance
Continuous grey/brown slopes of shale

Examples
Uinta Basin in north-central Utah.

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Spanish Bottom on the Colorado River

Did You Know?
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.
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Last Updated: July 11, 2006 at 11:26 MST