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Canyonlands National Park Seedling in Biological Soil Crust
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Canyonlands National Park
Halgaito Shale/Lower Cutler Formation
photo: The Confluence of the Colorado and Green rivers
NPS Photo by Neal Herbert
The Confluence of the Colorado and Green rivers
 

Deposited
Permian Period (245 to 286 million years ago)

Depositional Environment
Shallow seas and coastal plains

Appearance
Ledgy slopes with brown sandstones.

Examples
Confluence of the Green and Colorado rivers and in Cataract Canyon.

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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 01, 2011 at 09:33 MST