"Collection of United States Army Corps of Engineers Pittsburgh District Morgantown, Hildebrand and Opekiska locks and dams brochures."; "Dams--Monongahela River (W. Va. and Pa.)"; "undated"; "

Collection.

"; ""; "P12885"; "pec"; "Dams--Monongahela River (W. Va. and Pa.)"; "14255"; .