State of West Virginia, Survey, Office of Archaeology and Historic Preservation, Historic American Building Survey, West Oil Company, Endless Wire Petroleum Pumping Operation, Volcano Vicinity, Ritchie County, West Virginia; State Project I-64-1; Detail Maps of Bridge on State Route 73 and U.S. Route 19; Dupont Interchange Bridge; Drawings/Blueprints [14 sheets total], 1960-1972

State of West Virginia, Survey, Office of Archaeology and Historic Preservation, Historic American Building Survey, West Oil Company, Endless Wire Petroleum Pumping Operation, Volcano Vicinity, Ritchie County, West Virginia; State Project I-64-1; Detail Maps of Bridge on State Route 73 and U.S. Route 19; Dupont Interchange Bridge; Drawings/Blueprints [14 sheets total], 1960-1972, Map Case: 11, Drawer: 8, Folder: 14. 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/188182 Accessed November 29, 2024.