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National Park ServiceKids enjoy a nature walk at Smith Falls
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Fog rises above the Niobrara River near Valentine, NE  

Did You Know?
The Niobrara River is the longest river in Nebraska (its total length is 535 miles and it begins in Wyoming). A segment of the middle Niobrara has been designated by Congress as a Wild and Scenic River.
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Last Updated: July 25, 2006 at 00:22 EST