This site marks as base camp established by General Alfred Sully during his 1864 campaign. Rifle pits were dug around the ci...
Museum features 11 full-scale dinosaurs, minerals, mammals, fossils and sea life....
Lignite-fired electric generating station. Groups of five or fewer can contact plant directly. Group tours through Minnkota P...
One of 10 largest coal mines in the United States....
The site marks the original burial ground of Hunkpapa Sioux leader Sitting bull, who was killed on Dec. 15, 1890....