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Oregon Caves National Monument100 years of enjoyment
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Oregon Caves National Monument
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From the vista on the Cliff Nature trail you can see the nation's largest serpentine rock outcrops in the distance.  

Did You Know?
The mountains surrounding Oregon Caves are composed of ocean crust including rocks uplifted directly from the mantle. These mantle rocks make up one of the largest serpentine rock outcrops in the nation.

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Last Updated: June 15, 2008 at 18:09 EST