# Portneuf River East

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, Quebec, 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.
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, safe circulation on the ice is generally made from mid-December to the end of March.

## Geography

The main hydrographic slopes neighboring the Portneuf East River are:
* North side: Tremblay lake, Bouleaux stream, Sault aux Cochons River;
* East side: Portneuf River, à la Loutre stream, Rocheuse River;
* South side: Portneuf River, Émond stream;
* West side: Plate river, Grand-Mère lake, Portneuf river.
The Portneuf East River rises at the mouth of Lake Emilien (length: 1.8 kilometres (1.1 mi); altitude: 579 metres (1,900 ft)) surrounded by mountains. The mouth of this lake is located 6.8 kilometres (4.2 mi) East of Lake Daniel; 25.0 kilometres (15.5 mi) 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 37.7 kilometres (23.4 mi) according to the following segments:
Upper course of the Portneuf East river (segment of 24.3 kilometres (15.1 mi)
* 6.8 kilometres (4.2 mi) to the East, crossing Lake Samit (length: 1.2 kilometres (0.75 mi);
altitude: 523 metres (1,716 ft)) over its full length and Lake Ale (length: 0.8 kilometres (0.50 mi); altitude: 512 metres (1,680 ft)) 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;
* 6.1 kilometres (3.8 mi) towards the South-East, in particular collecting the outlet of lakes Lento, Ephod and Antoine, as well as crossing Lake Charles (length: 450 kilometres (280 mi); altitude: 0.9 metres (2 ft 11 in)), up to a bend in the river.
Note: Lac Charles receives the outlet (coming from the Southwest) from Lac du Chicot;
* 6.8 kilometres (4.2 mi) towards the North-East, up to an unidentified stream (coming from the North-West);
* 3.8 kilometres (2.4 mi) towards the South-East comprising a loop towards the North and an area of marsh at the end of the segment, until the confluence of an unidentified river (coming from the North-West);
Lower course of the Portneuf East river (segment of 13.4 kilometres (8.3 mi)
* 6.6 kilometres (4.1 mi) to the Southeast with a marsh area at the start of the segment and crossing several rapids, until the confluence of the Plate river;
* 0.4 kilometres (0.25 mi) towards the South by forming a curve towards the East, up to the outlet (coming from the South-West) of Lac la Botte;
* 2.1 kilometres (1.3 mi) south-east, to the outlet (coming from the west) of Lac du Loup Marin;
* 2.8 kilometres (1.7 mi) to the south, up to a bend in the river;
* 1.5 kilometres (0.93 mi) forming a large loop towards the East in a valley embedded between the mountains, up to the confluence of the river.
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 0.5 kilometres (0.31 mi) to the South. This confluence is located at:
* 54.1 kilometres (33.6 mi) West of the confluence of the Portneuf and St. Lawrence rivers;
* 51.3 kilometres (31.9 mi) Southwest of Forestville town center;
* 58.1 kilometres (36.1 mi) north-west of the village center of Les Escoumins;
* 74.4 kilometres (46.2 mi) North-West of North-West of the center of the village of Tadoussac.

## Toponymy

The toponym "Rivière Portneuf Est" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.