• Niagara power district. 1906

      Ontario Power Company (1906)
      Scale: 2000 feet to 1 inch. Geographic coverage of Niagara Falls, New York and Niagara Falls, Ontario. Sheet 4 of "Maps of power districts in Niagara Region" Digital reproduction of map (73 x 77 cm.) Georeferenced and modified by Map, Data and GIS Library, Brock University