Belle Fourche Dam and Glendo Dam-Reservoir Roadway : hearing before the Subcommittee on Water and Power Resources of the Committee on Interior and Insular Affairs, United States Senate, Ninety-third Congress, second session on S. 3223, a bill to expand the Glendo Unit of the Pick-Sloan Mossouri Basin Program to provide for the rehabilitation of a road relocated by the Bureau of Reclamation in the vicinity of Glendo Dam and reservoir, Platte County, Wyoming ; S. 2403, a bill to authorize the Secretary of the Interior to construct, operate, and maintain a larger and adequate spillway, and to improve the upstream slope protection on Belle Fourche Project, Belle Fourche, South Dakota, and for othewr purposes, June 13, 1974.