The Northern Plains National Heritage Area is one of the 49 National Heritage Areas in the United States. The heritage area is concerned with heritage education and heritage tourism, and considering how and why the past is meaningful for those of us today.
The Northern Plains National Heritage Area is centered on the free-flowing stretch of the Missouri River within the North Dakota counties of Burleigh, Morton, Mercer, McLean and Oliver. Public sites and locations within this heritage area are associated with nationally important themes and sub themes in American History. Some of the themes include the homeland of the Mandan-Hidatsa; Lewis & Clark, Sacagawea and the Corps of Discovery; and Lt. Col. George Armstrong Custer and the 7th Cavalry.