It flows in a general south to north direction, from the area around Saint-Jacques-le-Mineur (in Les Jardins-de-Napierville) to its mouth in the Saint Lawrence River, at the border between the cities of Brossard and La Prairie.

As a result, it flows through and drains areas of sparse and dense population like agricultural towns and suburban cities on the south shore of the Island of Montreal.

From this village, the river flows northwest (3.4 kilometres (2.1 mi) serpentine to the mouth of Saint-André Creek (coming from the southwest).

Then the river flows northwest (4.3 kilometres (2.7 mi) past the Brossard, Quebec Illinois Park and serpentine to route 134, which is Taschereau Boulevard.

In December 2014, the City of Brossard acquired for a million dollars a strip of 50-meter (55-yard) wide riparian lands covering 9830 square meters (2½ acres), between Radisson Park and Taschereau Boulevard, with the objective of protecting this waterfront.