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Theodore Roosevelt National ParkCannonball Concretions
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Theodore Roosevelt National Park
Natural Features & Ecosystems
 
Explore Theodore Roosevelt National Park from its geological foundations to the modern, living landscape.
 
Little Missouri River  

Did You Know?
When thieves stole Theodore Roosevelt's boat in 1886, he and his ranch hands built a new boat and chased them downriver. After apprehending the three men, Roosevelt singlehandedly marched them overland to Dickinson and collected a $50 reward while his ranch hands floated downstream to Mandan.
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Last Updated: June 07, 2009 at 12:48 EST