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Present Day Nations
Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation, Montana
Cheyenne River Sioux Tribe of the Cheyenne River Reservation, South Dakota
Crow Creek Sioux Tribe of the Crow Creek Reservation, South Dakota
Flandreau Santee Sioux Tribe of South Dakota
Iowa Tribe of Kansas and Nebraska
Iowa Tribe of Oklahoma
Lower Sioux Indian Community in the State of Minnesota
Omaha Tribe of Nebraska
Otoe-Missouria Tribe of Indians, Oklahoma

Treaty Timeline

Ratified Indian Treaties

Ratified Indian Treaty 159: Sauk and Fox, Sioux (Mdewakanton, Wahpacoota, Wahpeton, Sisseton, Yankton and Santee), Omaha, Iowa, Oto and Missouri - Prairie du Chien, Michigan Territory, July 15, 1830
Creation Date
National Archives Identifier
131516479
Ratified Indian Treaty Number
Ratified Indian Treaty 217: Oto, Missouri, Omaha, and Sioux (Yankton and Santee Bands) - Bellevue, Upper Missouri, October 15, 1836
Creation Date
National Archives Identifier
170231456
Ratified Indian Treaty Number
Ratified Indian Treaty 266: Omaha - Washington, DC, March 16, 1854
Creation Date
National Archives Identifier
176561695
Ratified Indian Treaty Number
Ratified Indian Treaty 334: Omaha - Washington, DC, March 6, 1865
Creation Date
National Archives Identifier
178928948
Ratified Indian Treaty Number

Associated Cessions

Cession 151
Cession 152
Cession 153
Cession 154
Cession 155
Cession 292
Cession 315
Cession 467
Cession 570
Cession 636
Cession 637