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Present Day Nations
Yankton Sioux Tribe of South Dakota

Treaty Timeline

Treaties and Cessions with the Yankton Sioux

Yankton Sioux treaties from the National Archives, and land Cessions from the Forestry Service.

Ratified Indian Treaty 67: Yankton Sioux - Portage des Sioux, July 19, 1815

July 19, 1815

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Ratified Indian Treaty 226: Yankton Sioux - Washington, DC, October 21, 1837

October 21, 1837

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Cession: 410

April 19, 1858

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Cession: 411

April 19, 1858

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Cession: 412

April 19, 1858

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Ratified Indian Treaty 67: Yankton Sioux - Portage des Sioux, July 19, 1815

Ratified Indian Treaty 226: Yankton Sioux - Washington, DC, October 21, 1837

Cession: 410

Cession: 411

Cession: 412

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TimelineJS

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