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Present Day Nations
Arapaho Tribe of the Wind River Reservation, Wyoming
Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation, Montana
Cheyenne River Sioux Tribe of the Cheyenne River Reservation, South Dakota
Cheyenne and Arapaho Tribes, Oklahoma
Northern Cheyenne Tribe of the Northern Cheyenne Indian Reservation, Montana

Treaty Timeline

Treaties and Cessions with the Arapaho

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

Cession: 300

September 17, 1851

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Cession: 477

September 17, 1851

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Ratified Indian Treaty 315: Arapaho and Cheyenne (of the Upper Arkansas) - Fort Wise, Kansas Territory, February 18, 1861

February 18, 1861

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Ratified Indian Treaty 341: Cheyenne and Arapaho - Little Arkansas River, Kansas, October 14, 1865 (Folder 2 of 2)

October 14, 1865

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Ratified Indian Treaty 342: Apache, Cheyenne, and Arapaho - Little Arkansas River, Kansas, October 17, 1865

October 17, 1865

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Ratified Indian Treaty 366: Cheyenne and Arapaho - Medicine Lodge Creek, Kansas, October 28, 1867

October 28, 1867

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Ratified Indian Treaty 369: Sioux (Brule, Oglala, Miniconjou, Yanktonai, Hunkpapa, Blackfeet, Cuthead, Two Kettle, Sans Arcs, and Santee) and Arapaho - Fort Laramie, Dakota Territory, April 29, 1868

April 29, 1868

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Cession: 597

April 29, 1868

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Ratified Indian Treaty 371: Northern Cheyenne and Northern Arapaho - Fort Laramie, Dakota Territory, May 10, 1868

May 10, 1868

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Cession: 525

August 10, 1869

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Cession: 598

September 26, 1876

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Cession: 599

September 26, 1876

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Cession: 300

Cession: 477

Ratified Indian Treaty 315: Arapaho and Cheyenne (of the Upper Arkansas) - Fort Wise, Kansas Territory, February 18, 1861

Ratified Indian Treaty 341: Cheyenne and Arapaho - Little Arkansas River, Kansas, October 14, 1865 (Folder 2 of 2)

Ratified Indian Treaty 342: Apache, Cheyenne, and Arapaho - Little Arkansas River, Kansas, October 17, 1865

Ratified Indian Treaty 366: Cheyenne and Arapaho - Medicine Lodge Creek, Kansas, October 28, 1867

Ratified Indian Treaty 369: Sioux (Brule, Oglala, Miniconjou, Yanktonai, Hunkpapa, Blackfeet, Cuthead, Two Kettle, Sans Arcs, and Santee) and Arapaho - Fort Laramie, Dakota Territory, April 29, 1868

Cession: 597

Ratified Indian Treaty 371: Northern Cheyenne and Northern Arapaho - Fort Laramie, Dakota Territory, May 10, 1868

Cession: 525

Cession: 598

Cession: 599

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TimelineJS

Ratified Indian Treaties

Ratified Indian Treaty 315: Arapaho and Cheyenne (of the Upper Arkansas) - Fort Wise, Kansas Territory, February 18, 1861
Creation Date
National Archives Identifier
74799191
Ratified Indian Treaty Number
Ratified Indian Treaty 341: Cheyenne and Arapaho - Little Arkansas River, Kansas, October 14, 1865 (Folder 2 of 2)
Creation Date
National Archives Identifier
183893186
Ratified Indian Treaty Number
Ratified Indian Treaty 341: Cheyenne and Arapaho - Little Arkansas River, Kansas, October 14, 1865 (Folder 1 of 2)
Creation Date
National Archives Identifier
183517077
Ratified Indian Treaty Number
Ratified Indian Treaty 342: Apache, Cheyenne, and Arapaho - Little Arkansas River, Kansas, October 17, 1865
Creation Date
National Archives Identifier
178930906
Ratified Indian Treaty Number
Ratified Indian Treaty 366: Cheyenne and Arapaho - Medicine Lodge Creek, Kansas, October 28, 1867
Creation Date
National Archives Identifier
179033813
Ratified Indian Treaty Number
Ratified Indian Treaty 369: Sioux (Brule, Oglala, Miniconjou, Yanktonai, Hunkpapa, Blackfeet, Cuthead, Two Kettle, Sans Arcs, and Santee) and Arapaho - Fort Laramie, Dakota Territory, April 29, 1868
Creation Date
National Archives Identifier
183517089
Ratified Indian Treaty Number
Ratified Indian Treaty 371: Northern Cheyenne and Northern Arapaho - Fort Laramie, Dakota Territory, May 10, 1868
Creation Date
National Archives Identifier
179036083
Ratified Indian Treaty Number

Associated Cessions

Cession 300
Cession 477
Cession 525
Cession 597
Cession 598
Cession 599