Three Affiliated Tribes of the Fort Berthold Reservation, North Dakota
Lands ceded to the United States by treaty, law or executive order, 1851–1892, as Charles C. Royce recorded them in 1899 — 81,180 km² in 7 cessions across Montana, North Dakota, Wyoming.
A cession records when the United States took title — not the full extent of a homeland, and much land was taken without any treaty. The link between each cession and present-day nations is the one the U.S. Forest Service and the National NAGPRA Program’s dataset records; the nation’s own account comes first. Corrections: [email protected].
Cessions
| Royce no. | Date | As the schedule names the parties | Sources |
|---|---|---|---|
| 300 | September 17, 1851 | Arapaho; Arikara; Assiniboin; Cheyenne; Crow; Gros Ventre; Mandan; Sioux | Royce’s schedule · treaty text |
| 529 | September 17, 1851; April 12, 1870 | Arikara; Gros Ventre; Mandan | Royce’s schedule · treaty text |
| 620 | September 17, 1851; April 12, 1870; July 13, 1880 | Arikara; Gros Ventre; Mandan | Royce’s schedule · treaty text |
| 621 | September 17, 1851; April 12, 1870; July 13, 1880 | Arikara; Gros Ventre; Mandan | Royce’s schedule · treaty text |
| 712 | March 3, 1891 | Gros Ventre; Mandan | Royce’s schedule |
| 713 | March 3, 1891 | Gros Ventre; Mandan | Royce’s schedule |
| 716 | June 17, 1892 | Fort Berthold Reservation | Royce’s schedule |
Lands proven before the Indian Claims Commission
Areas on the Commission’s 1978 map that this nation, or nations it is part of, proved they held when the United States took them:
No trail in Project Homeland crosses these lands yet. A map that shows one, traced in, would add it.