Cheyenne River Indian Reservation

Cheyenne River Indian Reservation
Farmland on the reservation
Location in South Dakota
Coordinates: 45°04′35″N 101°13′33″W / 45.07639°N 101.22583°W / 45.07639; -101.22583
TribeCheyenne River Sioux Tribe
CountryUnited States
StateSouth Dakota
CountiesDewey
Haakon
Meade
Stanley
Ziebach
Established1889
Government
  Governing bodyGeneral Tribal Council
Area
  Total
11,051.447 km2 (4,266.987 sq mi)
Population
 (2010)
  Total
8,090
Time zoneUTC-7 (MST)
  Summer (DST)UTC-6 (MDT)
GDP$154.8 Million (2018)
Websitecheyenneriversioux.com

The Cheyenne River Indian Reservation was created by the United States in 1889 by breaking up the Great Sioux Reservation, following the attrition of the Lakota in a series of wars in the 1870s. The reservation covers almost all of Dewey and Ziebach counties in South Dakota. In addition, many small parcels of off-reservation trust land are located in Stanley, Haakon, and Meade counties.

The total land area is 4,266.987 sq mi (11,051.447 km2), making it the fourth-largest Indian reservation in land area in the United States. Its largest community is unincorporated North Eagle Butte, while adjacent Eagle Butte is its largest incorporated city.