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 gone, and the mysterious yellow bulldog is gone, which means that in a sense the legend is true. Comanche alone survived. The site of the battle was first preserved as a United States national cemetery in 1879 to protect the graves of the 7th Cavalry troopers. In 1946, it was re-designated as the "Custer Battlefield National Monument", reflecting its association with Custer. In 1967, Major Marcus Reno was re-interred in the cemetery with honors, including an eleven-gun salute. Beginning in the early 1970s, there was concern within the National Park Service over the name Custer Battlefield National Monument failing to