This river successively flows through the regional county municipalities (MRC) of: The lower part of this small valley is served by boulevard les Neiges route 360 which goes up the valley first on the west side, then passes on the east side of the river.

The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.

The Jean-Larose River rises at the mouth of a small mountain lake northwest of Mont Sainte-Anne, in the unorganized territory of Lac-Pikauba.

[1] In 1725, a man called Jean Belleau, dit Larose, a censitaire in the seigneury of Gaudarville (near the Cap Rouge river), obtained the concession of land near the falls with his brother Pierre.

[2] The toponym "Rivière Jean-Larose" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec.