Survey for a ship canal to connect the Lakes Erie & Ontario, Lockport route / Surveyed under the direction of Capt. W.G. Williams, U.S. Top. Engs., by Lieuts. T.F. Drayton & J.G. Reed drawn by Lieut. J.G. Reed.
Relief shown by hachures.; "Map no. 3."; Shows canal survey from Kempville (Olcott)on Lake Ontario through Lockport to Tonawanda on the Niagara R.; Map drawn in 3 segments.; Direction arrows pointing south.
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