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. This source is located at: • east of
Saint-Hilaire Lake; • north-west of the summit of
Mont Sainte-Anne; • north-west of the mouth of the Jean-Larose river; • north-west of the mouth of the
Sainte-Anne River (Beaupré). This river bypasses
Mont Sainte-Anne by crossing the territory of
Parc du Mont Saint-Anne. From this source, the course of the Jean-Larose river descends from the Laurentian foothills over , with a drop of , according to the following segments: • towards the south-east down the mountain, up to a bend in the river; • towards the north-east in a deep valley forming a hook towards the east at the end of the segment, up to a stream (coming from the south); • towards the northeast by forming an S at the start of the segment, then in a curve towards the northwest, up to a bend in the river; • towards the south-east, in particular by crossing a zone of rapids, then by bending towards the south, until a brook (coming from the north-west); • to the south, branching south-west at the end of the segment, to the outlet (coming from the west) of a small unidentified lake; • south bypassing Bourg-les-Neiges, crossing a series of rapids on , then crossing an unidentified lake (length: ; altitude: ), to the dam at its mouth; • south-east with a drop of , to its mouth. The course of the river follows a stone corridor carved in the shape of a staircase by erosion, generating several falls and series of rapids. At the end of the route, the current drops from a height of 69 m into the Sainte-Anne river through the Jean-Larose falls, also known as "Larose falls". The Jean-Larose river flows on the west bank of a body of water formed by a dam on the
Sainte-Anne River (Beaupré), in
Beaupré. This confluence is located very close to the dam, which is northwest of the confluence of the Sainte-Anne river with the
St. Lawrence River and at north of the bridge leading from Côte-de-Beaupré to
Île d'Orléans. From the confluence of the Jean-Larose river, the current flows over generally towards the southwest by the course of the Sainte-Anne river, crossing downtown. Beaupré, to the northwest shore of the
St. Lawrence River. == Toponymy ==