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| Cheyenne River Agency | Rosebud Agency |
| Cheyenne River Sioux Tribe | Rosebud Sioux Tribe |
| Crow Creek Agency | Sisseton Agency |
| Crow Creek Sioux Tribe | Sisseton-Wahpeton Oyate |
| Lower Brule Agency | Yankton Agency |
| Lower Brule Sioux Tribe | Yankton Sioux Tribe |
| Pine Ridge Agency | Ponca Tribe of Nebraska |
| Oglala Sioux Tribe | Flandreau Santee Sioux Tribe |
indianaffairs.gov
An official website of the U.S. Department of the Interior
