| Montmorency River Rivière Montmorency | |
|---|---|
 Mouth of the Montmorency River | |
| Location | |
| Country | Canada |
| Province | Quebec |
| Region | Capitale-Nationale |
| RCM | La Jacques-Cartier Regional County Municipality, La Côte-de-Beaupré Regional County Municipality and Quebec (city) |
| Physical characteristics | |
| Source | Moran Lake |
| • location | Lac-Jacques-Cartier Unorg. Terr. |
| • coordinates | 47°34′42″N 71°04′45″W / 47.57833°N 71.07917°W |
| • elevation | 845 m (2,772 ft) |
| Mouth | Saint Lawrence River |
• location | Boischatel |
• coordinates | 46°53′06″N 71°08′36″W / 46.88500°N 71.14333°W |
• elevation | 4 m (13 ft) |
| Length | 103.7 km (64.4 mi) |
| Basin size | 1,150 km2 (440 sq mi) |
| Discharge | |
| • average | 35.6 m3/s (1,260 cu ft/s) |
| • minimum | 2.2 m3/s (78 cu ft/s)March |
| • maximum | 580 m3/s (20,000 cu ft/s)May |
| Basin features | |
| Tributaries | |
| • left | (upward from the mouth) Le Grand Ruisseau, Ferrée River, discharge from an unidentified lake, Verret stream, Brebel stream, Castor stream, Rouge River, Jos-Bédard stream, Smith River, discharge from 4 unidentified lakes, Turcotte stream, Cauchon stream, unidentified stream, rivière des Neiges, discharge from two unidentified lakes, unidentified stream, unidentified stream, Blanche River, Noire River, Laflamme lake outlet, unidentified stream, unidentified stream, discharge from Lake Élois, discharge from Lake Provençal (via Mare du Sault), Creek from Murphy, discharge from Lake Absolon, discharge from Lac Lachance, unidentified stream, unidentified stream, discharge from Lake Alyse. |
| • right | (upward from the mouth) Unidentified stream (via Lac du Délaissé), rivière du Lac, unidentified stream, unidentified stream, Lac Lamarre outlet, Euclide stream, unidentified stream, rivière aux Pins, Richelieu River, rivière à l'Île, Déboulis stream, Swain stream, unidentified stream, discharge from a non-dentified lake, stream Boutet, North stream, unidentified stream, Aulnaies stream, outlet of Piché lake, outlet of Pasquin lake, outlet of Forestier lake, Brûlés stream, unidentified stream, unidentified stream, outlet of a small unidentified lake, unidentified stream, discharge from a group of lakes including Maltais, Montmorency and Ancolies, unidentified stream. |
The Montmorency River is a tributary of North-East bank of St. Lawrence river, flowing in the administrative region of Capitale-Nationale, in the province of Quebec, Canada. The course of the river successively crosses the regional county municipality of:
- MRC La Côte-de-Beaupré Regional County Municipality: Lac-Jacques-Cartier, Château-Richer, L'Ange-Gardien, Boischatel;
- MRC La Jacques-Cartier Regional County Municipality: Sainte-Brigitte-de-Laval
- Agglomération de Québec.
It drains into the Saint Lawrence River, about 9 kilometres (5.6 mi) downstream from Quebec City. It is especially known for the impressive Montmorency Falls near its mouth.
It has an average flow of 35.6 m3/s (1,260 cu ft/s). Typical average summer flow is about 25 m3/s (880 cu ft/s), whereas during spring run-off, the river could swell anywhere from 130 to 650 m3/s (4,600 to 23,000 cu ft/s). Above 770 m3/s (27,000 cu ft/s) is considered an exceptional flood condition, and the Montmorency experienced a record flow of 1,100 m3/s (39,000 cu ft/s) in November 1966.[1][2]
- ^ Cite error: The named reference
portraitwas invoked but never defined (see the help page). - ^ "Graphique des données à une station hydrométrique". www.cehq.gouv.qc.ca. Retrieved 2020-11-02.