RIDEAU CANAL A 202-kilometre navigable waterway connecting the Ottawa River to Lake Ontario at Kingston, it has a remarkable diversity of natural and cultural landscapes. The canal links large lakes in a Precambrian landscape to an agricultural and urban landscape. This UNESCO World Heritage Site is a recreational treasure, with uses including traditional cottages, boating
facilities and camping. ST. LAWRENCE RIVER AND SEAWAY SYSTEM A deep draft waterway, the St. Lawrence Seaway opened to navigation in 1959. Construction of the 306-km stretch of the Seaway between Montreal and Lake Ontario is recognized as one of the most challenging engineering feats in history. THE OTTAWA RIVER VALLEY/THE OTTAWA-BONNECHÈRE ESCARPMENT The Ottawa River was first explored in the late 1600s by Samuel de Champlain. The river became one of the most important fur trading routes in Upper Canada. With the industrial revolution, it became an important timber route. Eastern Ontario owes much of its growth to this significant transportation corridor.