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Present Day Nations
Yankton Sioux Tribe of South Dakota

Treaty Timeline

Ratified Indian Treaties

Ratified Indian Treaty 67: Yankton Sioux - Portage des Sioux, July 19, 1815
Creation Date
National Archives Identifier
100220628
Ratified Indian Treaty Number
Ratified Indian Treaty 226: Yankton Sioux - Washington, DC, October 21, 1837
Creation Date
National Archives Identifier
148026727
Ratified Indian Treaty Number

Associated Cessions

Cession 410
Cession 411
Cession 412