Map of the St Lawrence River from Trois-Rivières to Quebec City with bathymetry (depth) and surrounding topography represented in colourful 3D. Includes buoy localization, nautical safety tips, guidelines and navigational information. The TRAK Nautical Atlas is convenient and practical for boaters with Its laminated pages in an easy to handle size. Format :Laminated booklet (12 pages, spiral binding) Scale of 1:40000