Which one reservations was in South Dakota and Nebraska Great Sioux Reservation or Cheyenne River Indian Reservation?
Cheyenne River Indian Reservation: The Cheyenne River Indian Reservation was created by the United States in 1889 by breaking up the Great Sioux Reservation, following its victory over the Lakota in a series of wars in the 1870s. Great Sioux Reservation: The Great Sioux Reservation was the original area encompassing what are today the various Sioux Indian reservations in South Dakota and Nebraska.
Great Sioux Reservation