Gentilly South-West River

The Gentilly South-West River (in French: rivière Gentilly Sud-Ouest) is a tributary of the Gentilly River which flows on the south shore of the St. Lawrence River.

The Gentilly Sud-Ouest river flows in the territory of the municipality of Saint-Sylvère and the town of Bécancour, in the MRC of Bécancour Regional County Municipality, in the administrative region of Centre-du-Québec, in Québec, in Canada.

Geography
The main neighboring hydrographic slopes of the Gentilly Sud-Ouest river are:
 * north side: Gentilly River, St. Lawrence River;
 * east side: Gentilly River;
 * south side: Poulet stream, Bécancour River;
 * west side: Grand-Saint-Louis River, Bécancour River.

The Gentilly Sud-Ouest river draws its source in an agricultural zone, from the confluence of two streams, in the eighth rang of Saint-Sylvère. This area is located north of the Bécancour River, 7 km southwest of the village of Saint-Sylvère and northeast of the village of Saint-Wenceslas.

From its head area, the Gentilly Sud-Ouest River flows with a drop of 70 m over 25.0 km in the following segments:
 * 1.0 km to the southwest in an agricultural zone;
 * 2.7 km north, to the sixth rang road;
 * 2.1 km north, to the limit between Saint-Sylvère and Bécancour;
 * 2.3 km north, to Chemin des Cerisiers;
 * 2.1 km north to Chemin des Hêtres;
 * 1.7 km north, to the road;
 * 6.0 km north, winding up to Route des Ormes;
 * 3.0 km north, winding up to Boulevard du Parc-Industriel;
 * 4.1 km (or 2.6 km in a direct line) north, winding up to its mouth.

The Sud-Ouest Gentilly River flows onto the west bank of the Gentilly River, in Bécancour.

Toponymy
The toponym “rivière Gentilly Sud-Ouest” was made official on December 5, 1968, at the Commission de toponymie du Québec.