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Yellowstone National Park Lower Falls in the Grand Canyon of the Yellowstone plunges more than 300 feet.
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Yellowstone National Park
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Greater Yellowstone Slope Map

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Summer Crowd at Old Faithful.

Did You Know?
At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the National Park Service.

Last Updated: September 11, 2006 at 17:16 MST