Rivière des Aulnaies (la Belle Rivière)

The rivière des Aulnaies is a tributary of La Belle Rivière, flowing the municipality of Hébertville, in the Lac-Saint-Jean-Est Regional County Municipality, in the administrative region of Saguenay–Lac-Saint-Jean, in the province of Quebec, in Canada]].

Rivière des Aulnaies
Location
CountryCanada
ProvinceQuebec
RegionSaguenay-Lac-Saint-Jean
Regional County MunicipalityLac-Saint-Jean-Est Regional County Municipality
MunicipalitiesHébertville
Physical characteristics
SourceKénogamichiche Lake
 • locationHébertville
 • coordinates48.37818°N 71.65741°E / 48.37818; 71.65741
 • elevation142
Mouthla Belle Rivière
 • location
Hébertville
 • coordinates
48.23028°N 71.72916°E / 48.23028; 71.72916
 • elevation
130 m (430 ft)
Length5.9 km (3.7 mi)
Discharge 
 • locationHébertville

The valley of the Aulnaies river is served by the route 169 (connecting Quebec (city) to Alma), by the chemin du 2e rang Est, rue La Barre and chemin du Rang Saint-Isidore, especially for forestry, agriculture and residents of the sector[1].

Agriculture is the main economic activity in this valley; village activities, second.

The surface of the Rivière des Aulnaies is usually frozen from the beginning of December to the end of March, however safe circulation on the ice is generally done from mid-December to mid-March.

Geography

The main watersheds neighboring the Rivière des Aulnaies are:

The Aulnaies river originates at the mouth of Kénogamichiche Lake (length: 6.8 km (4.2 mi); altitude: 142 m (466 ft)) in agricultural areas in Hébertville. This source is located at:

From its source, the Aulnaies river flows over 5.9 km (3.7 mi) with a drop of 19 m (62 ft), in agricultural and village areas, according to the following segments:

  • 2.4 km (1.5 mi) north-west, up to the outlet (coming from the south-west) of Loriset and Cognée lakes;
  • 3.3 km (2.1 mi) westwards through the village of Hébertville, bending north-west to its mouth[2].

The Aulnaies river flows on the east bank of la Belle Rivière. This confluence is located in Village-de-la-Chute, at:

  • 2.8 km (1.7 mi) north-west of the center of the village of Hébertville;
  • 6.0 km (3.7 mi) north-east of the hamlet of Lac Vouzier;
  • 8.3 km (5.2 mi) south-east of the confluence of la Belle Rivière with a bay on the east shore of Lac Saint-Jean;
  • 17.6 km (10.9 mi) south-east of the mouth of Lac Saint-Jean (via the Petite Décharge);
  • 15.1 km (9.4 mi) south of downtown Alma;
  • 47.1 km (29.3 mi) south-west of downtown Chicoutimi (sector of Saguenay (city))[2].

From the mouth of the Aulnaies river, the current descends the course of the Belle Rivière to the northwest on 6.1 km (3.8 mi), then crosses the eastern part of Lac Saint-Jean to the north on 15.4 km (9.6 mi), take the course of the Saguenay River via the la Petite Décharge on 172.3 km (107.1 mi) until Tadoussac where it merges with the Saint Lawrence estuary[2].

Toponymy

The toponym “Rivière des Aulnaies” was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec[3].

Notes and references
  1. Open Street Map - Accessed December 21, 2019
  2. "Atlas of Canada from the Department of Natural Resources Canada - Characteristics extracted from the geographic map, the database and the instrumentation of the site". Retrieved February 4, 2019.
  3. Commission de toponymie du Québec - Rivière des Aulnaies

Appendices
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