| Portneuf River East | |
| Name Other: | Old name: « Bras Nord-Est de la Rivière Portneuf » |
| Pushpin Map: | Quebec |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Côte-Nord |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | La Haute-Côte-Nord Regional County Municipality |
| Subdivision Type5: | Unorganized territory |
| Subdivision Name5: | Lac-au-Brochet |
| Length: | 37.7km (23.4miles) |
| Source1: | Émilien Lake |
| Source1 Location: | Lac-au-Brochet, MRC La Haute-Côte-Nord Regional County Municipality, Côte-Nord, Quebec, Canada |
| Source1 Coordinates: | 48.9862°N -70.0315°W |
| Source1 Elevation: | 586m (1,923feet) |
| Mouth: | Portneuf River (Côte-Nord) |
| Mouth Location: | Lac-au-Brochet |
| Mouth Coordinates: | 48.8117°N -69.7764°W |
| Mouth Elevation: | 382m (1,253feet) |
| Tributaries Left: | (Upward from the mouth) Lake Gaston outlet; discharge of a set of lakes including Lac Tremblay and Bouchard; discharge from lakes Mulot, Durand, Pellerin, Eugène, Étroit, Cerda, Cap Brun and du Rocher; Lac Éric outlet; outlet of Lake Nano. |
| Tributaries Right: | (Upward from the mouth) Lac du Loup Marin outlet, Lac la Botte outlet, Plate River (Portneuf River East), Lac du Chicot outlet, Lac Mimi outlet, Lento, Éphod and Antoine lakes outlet, Lac Hou, outlet of Lac Raymond. |
The Portneuf East River is a tributary of the Portneuf River, flowing on the northwest shore of the Saint Lawrence River, in the territory from Lac-au-Brochet, in the La Haute-Côte-Nord Regional County Municipality, in the administrative region of Côte-Nord, in the Province of Quebec, in Canada.
From route 138, the forest road “Chemin de la Rivière des Cèdres” goes up the valley of the Portneuf river, to the mouth of the Rivière des Cèdres. From there, a secondary forest road goes north-west to the peninsula south of the mouth of the Portneuf East river. The mountainous topography of the Portneuf East River hinders the development of a forest road for this valley.[1]
Forestry is the main economic activity in the sector; recreational tourism, second.
The surface of the Portneuf East River is usually frozen from the end of November to the beginning of April, however the safe circulation on the ice is generally made from mid-December to the end of March.
The main hydrographic slopes neighboring the Portneuf East River are:
The Portneuf East River rises at the mouth of Lake Emilien (length: ; altitude:) surrounded by mountains. The mouth of this lake is located East of Lake Daniel; North-West of the mouth of the Portneuf East river.
From Lac Émilien, the Portneuf Est river generally flows east, then south-east, entirely in forest areas over according to the following segments:
Upper course of the Portneuf East river (segment of
altitude:) over its full length and Lake Ale (length: ; altitude:) over its full length, as well as by forming a curve towards the South, up to the discharge (coming from the North) of a set of lakes including Éric, Garant, Noir, Épinette, Cameo and Élie;
Note: Lac Charles receives the outlet (coming from the Southwest) from Lac du Chicot;
Lower course of the Portneuf East river (segment of
The Portneuf East River flows in a curve from the East bank of the Portneuf River at the head of a series of rapids stretching to the South. This confluence is located at:
The toponym "Rivière Portneuf Est" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[3]