Location: North Dakota
Population: 15,309
Date of Constitution: 1936
Key Facts: Also known as The Three Affiliated Tribes of the Fort Berthold Reservation
More resources: Mandan, Hidatsa & Arikara Nation
Nation's website: mhanation.com
Mandan, Hidatsa, and Arikara Nation. 1936. "Constitution and By-Laws of the Three Affiliated Tribes of the Fort Berthold Reservation." New Town, ND.