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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
S is for Snake
A rattlesnake perks up as if it were to strike.

 

 

The prairie rattlesnake is the only poisonous snake in Yellowstone. They are not very common so most people feel lucky if they see one. 

 
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 10, 2007 at 16:13 EST