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Yellowstone National ParkLower Falls in the Grand Canyon of the Yellowstone plunges more than 300 feet.
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Yellowstone National Park
Fish Identification - Arctic grayling
Bison in Yellowstone.  

Did You Know?
There are more people hurt by bison than by bears each year in Yellowstone. Park regulations state that visitors must stay at least 25 yards away from bison or elk and 100 yards away from bears.

Last Updated: July 19, 2007 at 16:52 EST