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Areal geology, New York - Ontario, Niagara Gorge
(U.S. Geological Survey, 1913)
Historical map showing geological, road, transportation and hydrological features, buildings.Digital reproduction of map (118 x 44 cm.) in the Public Archives of Canada. National Map Collection. Library and Archives ...
Topographic Map of the Niagara Gorge
([Washington?] : U.S. Geological Survey,, 1913)
Historic map showing the Niagara Gorge. North is oriented to the top. The Niagara River and Niagara Falls are shown with Canada to the west of the river and the United States to the east. The border line running through ...