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John Day Fossil Beds National MonumentImage from Blue Basin overlook.
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John Day Fossil Beds National Monument
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Image of three toed horses.  

Did You Know?
The first horses evolved in North America 50 million years ago, and at least 14 different genera have been found at the John Day Fossil Beds National Monument in Oregon.

Last Updated: February 17, 2007 at 17:03 EST