Reva, South Dakota Reva, South Dakota Reva is an unincorporated community in Harding County, South Dakota, United States. Although not tracked by the Census Bureau, Reva has been assigned the ZIP code of 57651. The community has the name of Reva Bonniwell, the daughter of a first settler. The Battle of Slim Buttes occurred here on September 9–10, 1876, in the Great Sioux Reservation between the United States Army and Miniconjou Sioux during the Great Sioux War of 1876. It marked the first significant victory for the Army since the stunning defeat of General George Custer at the Battle of Little Bighorn in
Battle of the Little Bighorn killed at the scene. Writer Evan S. Connell noted in "Son of the Morning Star": Comanche was reputed to be the only survivor of the Little Bighorn, but quite a few Seventh Cavalry mounts survived, probably more than one hundred, and there was even a yellow bulldog. Comanche lived on another fifteen years, and when he died, he was stuffed and to this day remains in a glass case at the University of Kansas. So, protected from moths and souvenir hunters by his humidity-controlled glass case, Comanche stands patiently, enduring generation after generation of undergraduate jokes. The other horses are