Theodore Roosevelt's first ranch cabin built after arriving in Dakota Territory for a hunting trip....
Site contains 60-million-year-old dinosaur fossils, including triceratops and tyrannosaurus rex....
Lignite-fired electric generating station. Groups of five or fewer can contact plant directly. Group tours through Basin Elec...
One of 10 largest coal mines in the United States....
Medicine Hole, one of North Dakota's few caves, is located on top of one of the Killdeer Mountain formations. Indian legend c...