Coteau-du-Lac canal, Military canal and archaeological site in Coteau-du-Lac, Canada
The canal system stretches 100 meters in length with three locks measuring 12 meters long and 1.8 meters wide, built along the Saint Lawrence River.
Between 1779 and 1781, Captain William Twiss directed the construction of North America's first lock canal system to facilitate British military transportation.
Archaeological excavations at the site revealed Indigenous artifacts dating back to 3000 years ago, including ceramic shards and a carved pebble with facial features.
The historic site, located 40 kilometers southwest of Montreal at 308a River Road, maintains a collection of military artifacts and features a reconstructed 1813 blockhouse.
The canal's construction required the King's Royal Regiment of New York to dig through solid rock, creating locks that managed a two-meter water level difference.
Location: Coteau-du-Lac
GPS coordinates: 45.28778,-74.17694
Latest update: March 9, 2025 01:49
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