| Richelieu River | |
| 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 Jacques-Cartier Regional County Municipality |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Sainte-Brigitte-de-Laval |
| Length: | 7.2km (04.5miles) |
| Source1: | Confluence of two streams |
| Source1 Location: | Sainte-Brigitte-de-Laval |
| Source1 Coordinates: | 47.043°N -71.2021°W |
| Source1 Elevation: | 489 m |
| Mouth: | Montmorency River |
| Mouth Location: | Sainte-Brigitte-de-Laval |
| Mouth Coordinates: | 46.9942°N -71.1953°W |
| Mouth Elevation: | 200 m |
| Tributaries Left: | (Upward from the mouth) Discharge from an unidentified lake |
| Tributaries Right: | (Upward from the mouth) Discharge from an unidentified small lake, unidentified stream, unidentified stream, unidentified stream, discharge from an unidentified lake, unidentified stream. |
The Richelieu River is a tributary of the west bank of the Montmorency River. This watercourse flows on the north shore of the Saint-Laurent river, in the municipality of Sainte-Brigitte-de-Laval, in the La Jacques-Cartier Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The lower part of this valley is served by avenue Sainte-Brigitte and by rue Auclair. The upper part is served by a secondary forest road. Forestry is the main economic activity in this valley; recreational tourism, second.
Because of its altitude, the surface of the Richelieu River is generally frozen from the beginning of December until the end of March; however, safe circulation on the ice is generally done from mid-December to mid-March. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.
The Richelieu River takes its source at the confluence of two forest and mountain streams (altitude:), on the north flank of the Montagne à Deux Têtes, either:
Course of the Richelieu river
From its source, the Richelieu River descends from the mountains into forest territory, flowing over, with a drop of, according to the following segments:
From the confluence of the Richelieu river, the current flows over generally south by the course of the Montmorency river, to the northwest shore of the Saint-Laurent river.[1]
The toponym "Richelieu River" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec.[2]