United States Department of Army Corps of Topographical Engineers, Plans and Profile of Survey of a Ship Canal around the Falls of Niagara, including a folder with map fragments; Blueprints; Map of Pennsylvania done for the State Governor and Legislature [7 sheets], 1791 June 13-1835

United States Department of Army Corps of Topographical Engineers, Plans and Profile of Survey of a Ship Canal around the Falls of Niagara, including a folder with map fragments; Blueprints; Map of Pennsylvania done for the State Governor and Legislature [7 sheets], 1791 June 13-1835, Map Case: 11, Drawer: 9, Folder: 10. Institute for the History of Technology and Industrial Archaeology Records, A&M 3936. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/188193 Accessed November 26, 2024.