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The main entrance to Little Bighorn Battlefield National Monument is 15 miles southeast of Hardin via exit 510 off I-90, then a half-mile east via US 212. In the Valley of the Little Bighorn River in June 1876, Lt. Col. George Armstrong Custer and the 210 men of the 7th Cavalry Regiment under his command made their last stand against several thousand Lakota, Arapaho and Northern Cheyenne, many of whom were fleeing the restrictions of the reservation. Covering 1.2 square miles, the monument commemorates the dramatic climax of the Indian Wars by preserving the site of this Native American victory. Learn More...