Survey map of the Second Welland Canal created by the Welland Canal Company showing the canal in the Thorold Township between Port Robinson and Welland. Identified structures and features associated with the Canal include the towing path, a ditch, and the waterway itself. The surveyors' measurements and notes can be seen in red and black ink and pencil. Local area landmarks are also identified and include a road allowance between two lots, the Spoil Bank, and a pond. Properties and property owners of note are: Lot 222, 223, and 215, Hagar, Alem Marr, and Heaslip.