| Rivière du Mont Saint-Étienne | |
| Pushpin Map: | Quebec |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Capitale-Nationale |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | La Côte-de-Beaupré Regional County Municipality |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Lac-Jacques-Cartier, Saint-Ferréol-les-Neiges |
| Length: | 180km (110miles) |
| Source1: | Deuxième lac Lunch |
| Source1 Location: | Lac-Jacques-Cartier |
| Source1 Coordinates: | 47.2391°N -70.9489°W |
| Source1 Elevation: | 753 m |
| Mouth: | Sainte-Anne River (Beaupré) |
| Mouth Location: | Saint-Ferréol-les-Neiges |
| Mouth Coordinates: | 47.1842°N -70.81°W |
| Mouth Elevation: | 324 m |
| Tributaries Left: | (Upward from the mouth) Discharge from an unidentified lake, unidentified stream, discharge from an unidentified lake, three unidentified streams. |
| Tributaries Right: | (Upward from the mouth) Three unidentified streams, Southwest Arm of the Rivière du Mont Saint-Étienne, five unidentified streams, outlet of Lac Coeur, unidentified stream, stream (via Second Lynch Lake). |
The rivière du Mont Saint-Étienne (English: Mont Saint-Etienne river) is a tributary of the Sainte-Anne river, flowing on the north bank of the Saint Lawrence River, in the unorganized territory of Lac-Jacques-Cartier and the municipality of Saint-Ferréol-les-Neiges, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The lower part of this small valley is served by chemin de l'Abitibi-Price, chemin du rang Saint-Marie and chemin Clairval. Chemin du rang Saint-Édouard runs southwest of the middle part of the river course. The upper part is served by a secondary forest road passing on the north side of the river and which connects to the southeast with the Abitibi-Price road. Forestry is the main economic activity in this valley; recreational tourism, second.
The surface of the lower part of the Mont Saint-Étienne river is generally frozen from the beginning of December until the end of March; however, safe traffic on the ice is generally from mid-December to mid-March. The upper part has a freezing period of about an additional week. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.
The Mont Saint-Étienne river rises at the mouth of second Lynch Lake, on the northwest side of Mont Saint-Étienne, in the unorganized territory of Lac-Jacques-Cartier. This lake wedged between the mountains has two outlets: one flows west descending towards the rivière du Camp Brûlé passing through First Lynch Lake; the other east along the Mont Saint-Étienne river. This second mouth of the lake (East side) is located at:
This river bypasses Mont Saint-Étienne. From this source, the course of this river descends on, with a drop of, according to the following segments:
The Mont Saint-Étienne river flows on the southwest bank of the Sainte-Anne River (Beaupré), in Saint-Ferréol-les-Neiges. This confluence is located upstream of the route 360 bridge and downstream of the confluence of the Brûlée River.
From the confluence of the Mont Saint-Étienne 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 Saint Lawrence River.[1]
The toponym "rivière du Mont Saint-Étienne" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[2]