Fort Peck Indian Reservation (Montana)

The Fort Peck Indian Reservation is a federally-recognized reservation, located in northeastern Montana, primarily in Roosevelt County, with smaller portions in Daniels, Sheridan, and Valley Counties..


 * Established -- 17 October 1855
 * Agency (BIA) -- Fort Peck Indian Agency
 * Principal tribes -- Assiniboin, and Brulé, Santee, Teton, Hunkpapa and Yanktonai Sioux
 * Population -- 1,406 (2000 census)   1969: Tribal enrollment 5,674

History
Fort Peck Reservation was established by Treaty of Oct. 17, 1855; unratified treaties of July 18, 1866, and July 13, and 15 and Sept. 1, 1868; Executive orders, July 5, 1873, and Aug. 19,1874; act of Apr. 15, 1874; Executive orders, Apr. 13, 1875, and July 13,1880; an agreement made Jan. 21, 1887, approved by Congress May 1, 1888; and an agreement made Dec. 28, 1886, approved by Congress may 1, 1888.

Its area in 1908 was 1,766,000 acres.

Records
Many of the records of individual Indians living on the Fort Peck Reservation were kept by the Fort Peck Agency of the Bureau of Indian Affairs. Others are kept by the Tribal Office.

Land records: Tribal lands: 233,153.17 acres. Allotted land: 645,114.20 acres.