Bras de Jacob

The bras de Jacob (English: Jacob's arm) is a tributary of the rivière du Moulin, flowing successively in the Saguenay, then in the territory not organized from Lac-Ministuk, in the Le Fjord-du-Saguenay Regional County Municipality, in the administrative region of Saguenay–Lac-Saint-Jean, in the province of Quebec, in Canada. The course of bras de Jacob crosses the northwest part of the zec Mars-Moulin.

Bras de Jacob
Location
CountryCanada
ProvinceQuebec
RegionSaguenay-Lac-Saint-Jean
Regional County MunicipalityLe Fjord-du-Saguenay Regional County Municipality
Unorganized territory and a cityLac-Ministuk, Saguenay
Physical characteristics
SourceLac Jacob
 • locationLac-Ministuk
 • coordinates48.24162°N 71.19271°W / 48.24162; -71.19271
 • elevation307 m (1,007 ft)
Mouthrivière du Moulin
 • location
Saguenay
 • coordinates
48.23194°N 71.10056°E / 48.23194; 71.10056
 • elevation
220 m (720 ft)
Length9.0 km (5.6 mi)[1]
Discharge 
 • locationSaguenay
Basin features
Tributaries 
 • left(from the mouth) Discharge of lac Desgagné.
 • right(from the mouth) Bras Henriette, discharge of lac Le Étangs, discharge of lac Cami, bras de Jacob West.

The upper part of this small valley is served by the Lac-du-Bois-Joli road which passes on the north shore of Lac Jacob. A few other secondary forest roads serve the valley of the Jacob's arm, mainly for forestry and recreational tourism activities.[2]

Forestry is the main economic activity in this valley; recreational tourism, second.

The surface of Jacob's arm is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally done from mid-December to mid-March.

Geography

The main watersheds neighboring of bras de Jacob are:

The bras de Jacob rises at the mouth of Lake Jacob (length: 0.9 km (0.56 mi); altitude: 307 m (1,007 ft)) in the forest area. This lake is fed by the outlet (coming from the northeast) from Fournier lake, and the outlet (coming from the west) from an unidentified lake. This source is located at:

From its source, Jacob's arm flows over 9.0 km (5.6 mi) with a drop of 87 m (285 ft) entirely in the forest zone, according to the following segments:

  • 5.0 km (3.1 mi) to the east by collecting the discharge (coming from the south) from Cami Lake, then by forming two curves towards the south, up to a bend in the river, corresponding to the discharge (coming from the east) of Lac Desgagné;
  • 1.6 km (0.99 mi) towards the south-east, collecting a discharge (coming from the south-east) from a small lake, then bending towards the east, up to bras Henriette (coming from the southwest);
  • 2.4 km (1.5 mi) towards the northeast curving towards the east, to its mouth.[3]

Jacob's arm spills out onto the west bank of rivière du Moulin. This confluence is located at:

From the mouth of "Bras de Jacob", the current successively follows the course of the rivière du Moulin on 37.6 km (23.4 mi) towards the north, then the course from the Saguenay River on 126.1 km (78.4 mi) eastwards to Tadoussac where it merges with the Saint Lawrence Estuary.[3]

Toponymy

The toponym "bras de Jacob" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[4]

Notes and references
  1. "Bras de Jacob, Bank of Quebec place names". Commission de toponymie du Québec. Retrieved December 19, 2019.
  2. Open Street Map - Accessed January 24, 2019
  3. "Atlas du Canada du Ministère des ressources naturelles du Canada - Characteristics extracted from the geographic map, the database and the instrumentation of the site". Retrieved 24 January 2019.
  4. Commission de toponymie du Québec - Bras de Jacob

Appendices
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