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Making America's Best Idea Even Better
Canyonlands National ParkSeedling in Biological Soil Crust
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Canyonlands National Park
Moenkopi Formation
 
photo: Aerial view of Murphy Hogback on the White Rim Road. This mesa is in the Moenkopi Formation.
NPS Photo by Neal Herbert
Aerial view of Murphy Hogback on the White Rim Road. This mesa is in the Moenkopi Formation.
 

Deposited
Triassic Period (208 to 245 million years ago)

Depositional Environment
Tropical tidal flat

Appearance
Dark red-brown, ledge-forming sandstones and siltstones

Example
Irregular slopes with ledges just above the White Rim Road at the Island in the Sky District of Canyonlands.
Interactive Geologic Atlas
Interactive Geologic Atlas
Flash animations manage to simplify the story of Canyonlands.
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Rapids in Cataract Canyon  

Did You Know?
The highest recently recorded flow in Cataract Canyon is 114,900 cfs in 1984. However, scientists dating driftwood piles estimate that in 1884, the river may have reached 225,000 cfs.
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Last Updated: July 12, 2006 at 14:56 EST