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These three markers, located in close proximity, deal with early habitation at Coteau-du-Lac.
Coteau-du-Lac: A site visited for thousands of years
Over 7,000 years ago (Laurentian Archaic Period)
The construction of hydroelectric dams and the St. Lawrence Seaway in the 1950s caused the water level of the river to fall by about 2.5 metres.
At the eastern end of Lake Saint-François, dams, sluicegates and the Coteau-du-Lac dikes…
The St. Lawrence River abounded with rapids between Montréal and Kingston, especially in the stretch between Lake Saint-Louis and Lake Saint-François, where a series of "cascades" made navigation impossible. Of all the rapids in…
English: Since the "batteau" was difficult to portage, the French has to find another means of getting this heavy boat past the rapids. As a result, they constructed a "rigolet" canal at Coteau-du-Lac in the 18th century.
English: Plans to launch an invasion of Canada during the Revolutionary War (1775-1783) brought to light a major weakness in the country's system of defence.
At the time, the St. Lawrence River was the only line of supply for the military posts …
Captain William Twiss, Commanding Royal Engineer of the British army, initiated and supervised the construction of the Coteau-du-Lac canal.
This canal was intended to reduce the amount of time it took for "batteaux" to pass …
English: A canal is an artificial waterway designed to improve navigation on a river or other watercourse.
A lock is a water-filled chamber with gates and sluices which allows vessels to travel between bodies of water that are located at differe…
English: The point at Coteau-du-Lac is formed by superimposed layers of dolomite (rock containing lime and magnesium). The British military used various excavation techniques to build a canal at this spot.
In general, they removed the rock layer…
The construction of the canal at Coteau-du-Lac began in the summer of 1779.
William Twiss, Commanding Royal Engineer of the British army, was in charge of the project. Most of the labourers who worked on the canal were soldiers of the…
English: The Canadian Parks service has a mission to preserve certain sites that bear witness to the history of our country and to the accomplishments of our ancestors. Of exceptional historic and archaeological importance, the Coteau-du-Lac Natio…