| Rivière du Milieu | |
| 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: | Unorganized territory |
| Subdivision Name5: | Lac-Jacques-Cartier |
| Length: | 24km (15miles) |
| Discharge1 Location: | Lac-Jacques-Cartier |
| Source1: | Warbonne Lake |
| Source1 Location: | Lac-Jacques-Cartier |
| Source1 Coordinates: | 47.6102°N -71.3174°W |
| Source1 Elevation: | 857m (2,812feet) |
| Mouth: | Launière River |
| Mouth Location: | Lac-Jacques-Cartier |
| Mouth Coordinates: | 47.4842°N -71.41°W |
| Mouth Elevation: | 630m (2,070feet) |
| Tributaries Left: | (Upward from the mouth) Décharge du lac Dupuis, décharge du lac Roy, décharge (via le Lac Maigre) des lac Valois et Petit Lac Valois, ruisseau non identifié (via le Lac Maigre), décharge des lacs Sirois et Petit lac Sirois, décharge d'un petit lac (comportant un barrage). |
| Tributaries Right: | (Upward from the mouth) Ruisseau non identifié, décharge des lacs Loyer, du Bout et Lakas, décharge du lac Mabile, décharge du lac Cayer, décharge du lac Kay, décharge du lac de la Corniche, décharge du lac du Corridor.. |
The Rivière du Milieu is a tributary of the Launière River, flowing in the unorganized territory of Lac-Jacques-Cartier, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, at Canada.
This watercourse is located in the center of the Laurentides Wildlife Reserve. This valley is indirectly accessible by the route 175 (route Antonio-Talbot). Secondary forest roads serve the sector for forestry and recreational tourism activities, in particular the forest road R0320 which runs on the north side of lakes Maigre and Valois and crosses the Middle River upstream of Lake Maigre.
Forestry is the main economic activity in the sector; recreational tourism, second.
The surface of the Middle River (except the rapids areas) is usually frozen from the end of November to the beginning of April, however the safe circulation on the ice is generally done from mid-December to the end of March.
The main watersheds neighboring the Rivière du Milieu are:
The "rivière du Milieu" has its source at the mouth of Warbonne Lake (length: ; altitude:). This lake is enclosed between mountains whose summit culminates at to the west and to the east. This lake has two outlets:
From the confluence of the two outlets from the emissaries of Lake Warbonne, the course of the Rivière du Milieu descends on, with a drop of . Its course is described according to the following segments:
The current of the Rivière du Milieu flows into a river T on the east bank of the Launière River. From there, the current over towards the south-east in a deep valley and forming a small curve towards the north-east to go around a mountain, until its mouth. Then the current follows the course of the Jacques-Cartier River on, to the northwest shore of the Saint-Laurent river, at Sainte-Catherine-de-la-Jacques-Cartier.
The toponym "Rivière du Milieu" was formalized on June 6, 1973, at the Place Names Bank of the Commission de toponymie du Québec.[2]