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 reenactment Battle of the Little Bighorn reenactment Battle of the Little Bighorn Reenactment is a reenactment of the Battle of the Little Bighorn. Since the 1990s there have been two events conducted annually close to the anniversary of the battle in late June, although in 2015 only one event has been scheduled to take place. The Real Bird family has conducted the "Battle of Little Bighorn Reenactment" since 1995 on the banks of the Little Bighorn River off East Frontage Road between Crow Agency and Garryowen, Montana. The site of the reenactment is on the edge of the Little Bighorn river