| Name Other: | Old name: "Rivière Laval" (French) |
| 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: | L'Ange-Gardien, Boischatel |
| Length: | 175km (109miles) |
| Source1: | Mountain stream |
| Source1 Location: | L'Ange-Gardien |
| Source1 Coordinates: | 46.9561°N -71.1753°W |
| Source1 Elevation: | 339 m |
| Mouth: | Montmorency River |
| Mouth Location: | Boischatel |
| Mouth Coordinates: | 46.9014°N -71.1694°W |
| Mouth Elevation: | 117 m |
| Tributaries Left: | (Upward from the mouth) rivière la Retenue and six streams. |
| Tributaries Right: | Four streams |
The Ferrée river is a tributary on the east bank of the Montmorency River. It flows in the municipalities of L'Ange-Gardien and Boischatel, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The upper part of this valley is served by Chemin des Sucreries, by Chemin du Nord-de-la-Ligne Hydro and by a few forest roads. Forestry, in particular the exploitation of sugar factories, constitutes the main economic activity in this valley; second, recreational tourism. While the lower part crosses the northern sector of the urban part of Boischatel.
The surface of the Ferrée 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 water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.
The Ferrée river originates from a forest stream (altitude:). This source is located in the heart of a mountain with three peaks (379 m, 385 m and 398 m) in the municipality of L'Ange-Gardien, at:
From its source, the Ferrée river descends on, with a drop of according to the following segments:
Upper part of the Ferrée river (segment of)
Lower part of the Ferrée river (segment of)
The Ferrée river flows on the northeast bank of the Montmorency river, opposite the hamlet "Les Roches-Plates" located on the southwest bank.
From the confluence of the Ferrée river, the current flows over generally towards the southeast by the course of the Montmorency River, up to the northwest bank of the St. Lawrence River.[1]
The Ferrée river has the particularity of having an underground section on . These losses feed the Boischatel cave. During major floods, the section between the losses of the Ferrée River and the Montmorency river can flow in the open air.[2]
This river was formerly designated "Rivière Laval" and "Rivière Ferry".
The toponym "Rivière Ferrée" was formalized on August 14, 1997, at the Commission de toponymie du Québec.[3]