Rivière des Mères

The Rivière des Mères (French pronunciation:) is a tributary of the south shore of the Saint Lawrence River. This watercourse flows in the municipalities of Saint-Michel-de-Bellechasse and Saint-Vallier, in the Bellechasse Regional County Municipality, in the administrative region of Chaudière-Appalaches, in Quebec, in Canada.

The surface of the rivière des Mères is generally frozen from the beginning of December until the end of March, except for the rapids areas; however, safe circulation on the ice is generally done from mid-December to mid-March. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.