| The St. Lawrence River, between Montreal and
Kingston, is composed of a set of rapids (in light blue),
impending navigation and fluvial lakes (in deep blue). In
order to have access to the Great Lakes a set of locks
and canals were built between 1785 and 1901 (yellow). The
first ones permitted to bypass the rapids between lake
St. Louis and Lake St. Francois in 1785. As the system
evolved the capacity and reliability of canals improved.
By 1901, it was possible to go from Montreal to Kingston
(Prescott is a few kilometers east of Kingston at the tip
of Lake Ontario) by a 4.25 meters (14 feet) deep canal
system. |
