Recherche dans la collection - Map of Survey and cross Sections of Ground with Plan of proposed Mill Sites on the late ordnance property along the St. Lawrence and Ottawa Canal at the Cascades from measurement and levels taken the 29th & 31st of August & 1st of September 1857. Drawn to scale of 50' to the inch, Eng. Meare. Cedars 19th September 1857 (signed) G.F. Baillarge. [cartographic material]