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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
White Rim Sandstone
 
photo: the White Rim Sandstone frames the inner canyon of the Green River below Green River Overlook.
NPS Photo by Neal Herbert
The White Rim Sandstone frames the inner canyon of the Green River below Green River Overlook.
 

Deposited
Permian Period (245 to 286 million years ago)

Depositional Environment
Wind-blown beach sands

Appearance
White, cross-bedded sandstones forming cliffs and caprocks

Examples
White canyon rim marking the inner gorge of the Colorado and Green rivers 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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Pinyon Pine  

Did You Know?
Pinyon pines do not produce pine nuts every year. These delicious nuts can only be harvested every three to seven years. This irregular schedule prevents animals from adapting to an abundance of pine nuts and guarantees that at least some nuts will become new pine trees instead of a quick meal.
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Last Updated: July 12, 2006 at 15:03 EST