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....
Located at the end of the Enchanted Highway, this four-building museum features Doc Hill's office, a drugstore, pioneer town ...
Visit fossil-bearing sites ranging in age from 30 years to 73 million years....
Guided tour of Gen. George and Libbie Custer's home. Self-guided tour of Fort Abraham Lincoln, home of the 7th Cavalry....