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.
The main neighboring hydrographic slopes of the Gentilly Sud-Ouest river are:
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, 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 over in the following segments:
The Sud-Ouest Gentilly River flows onto the west bank of the Gentilly River, in Bécancour.
The toponym âÂÂrivière Gentilly Sud-Ouestâ was made official on December 5, 1968, at the Commission de toponymie du Québec.