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 adequately reflect the larger history of the battle between two cultures. Hearings on the name change were held in Billings on June 10, 1991, and during the following months Congress renamed the site the "Little Bighorn Battlefield National Monument". United States memorialization of the battlefield began in 1879 with a temporary monument to the U.S. dead. In 1881, the current marble obelisk was erected in their honor. In 1890, marble blocks were added to mark the places where the U.S. cavalry soldiers fell. Nearly 100 years later, ideas about the meaning of the battle have become more inclusive. The United