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Des Sources Boulevard is a north-south artery located in the west of the island of Montreal, informally known locally as the West Island.
The boulevard crosses the island completely from north to south. In the south, it starts at the intersection of Chemin du Bord-du-Lac and intersects Highway 20 at Exit 53. It then intersects Highway 40 at Exit 55. Thereafter, it crosses the city of Dollard-des-Ormeaux and reaches Pierrefonds Boulevard and Gouin Boulevard in the north. It ends on Debours Street in a newly built residential area.
