The Landroche river flows in the municipality of Baie-du-Febvre, in the Nicolet-Yamaska Regional County Municipality (MRC), in the administrative region of Centre-du-Quebec, in Quebec, in Canada.

The main neighboring hydrographic slopes of the Landroche river are: The Landroche river draws its source from agricultural streams located in the territory of the municipality of Baie-du-Febvre, almost at the limit of Saint-Elphège.

[1] The Landroche River flows northwest in an agricultural zone, crossing route 132.

The river empties on the flats of Pierre à Chaux on the south shore of Lake Saint-Pierre, near Pointe Gabriel, north-east of the village of Baie-du-Febvre.

The toponym "rivière Landroche" was made official on August 8, 1980, at the Commission de toponymie du Québec.