Gavins Point Dam, part of the 1944 Pick-Sloan Plan, plays an important role in the successful operation of the six main stem dams and reservoirs on the Upper Missouri River Basin. The dam was completed in 1957 at a cost of $51 million.
This has been the homeland of the Ponca Indians since earliest recorded history. In 1866, the Federal government signed the treaty of Fort Laramie, which transferred the land to the Sioux without the permission of the Ponca. Treaties made with the government in 1856