| Bras de Jacob Ouest | |
| Pushpin Map: | Quebec |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | Le Fjord-du-Saguenay Regional County Municipality |
| Subdivision Type5: | City |
| Subdivision Name5: | Saguenay |
| Length: | 8.7km (05.4miles) |
| Discharge1 Location: | Saguenay |
| Source1: | Lac Graveline |
| Source1 Location: | Saguenay |
| Source1 Coordinates: | 48.1831°N -71.1968°W |
| Source1 Elevation: | 410m (1,350feet) |
| Mouth: | Bras de Jacob |
| Mouth Location: | Saguenay |
| Mouth Coordinates: | 48.2411°N -71.1922°W |
| Mouth Elevation: | 306m (1,004feet) |
| Tributaries Left: | (from the mouth) Discharge of lac Tremblay, discharge of lac Flévy, discharge of lac de la Flache. |
| Tributaries Right: | (from the mouth) Unidentified stream, discharge of lakes Thériault and "des Perches". |
The Bras de Jacob Ouest (English: arm of Jacob West) is a tributary of the Bras de Jacob, flowing successively in the unorganized territory of Lac-Ministuk, in the Le Fjord-du-Saguenay Regional County Municipality, then in Saguenay, in the administrative region of Saguenay–Lac-Saint-Jean, in province from Quebec, to Canada. The course of the Bras de Jacob Ouest crosses the northwest part of the zec Mars-Moulin.
The small valley of the Bras de Jacob Ouest is served indirectly by the route 175 which passes on the west side and by the path of Lac-du-Bois-Joli which passes on the north shore of the lake Jacob. A few other secondary forest roads serve the valley of the Bras de Jacob Ouest, especially for forestry and recreational tourism activities.[1]
Forestry is the main economic activity in this valley; recreational tourism, second.
The surface of Bras de Jacob Ouest 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.
The main watersheds adjacent to the Bras de Jacob Ouest are:
The Bras de Jacob Ouest rises at the mouth of Lac Graveline (length: 0.5km (00.3miles); altitude: 410m (1,350feet)) in a forest area in the Laurentides Wildlife Reserve. This source is located at:
From its source (Lac Graveline), the Bras de Jacob Ouest flows over 8.7km (05.4miles) with a drop of 104m (341feet) entirely in the forest zone, according to the following segments:
The Bras de Jacob Ouest spills onto the south bank of the Bras de Jacob. This confluence is located at:
From the mouth of Bras de Jacob Ouest, the current successively take the courses of Bras de Jacob on 9km (06miles) towards the east, the course of the rivière du Moulin on 37.6km (23.4miles) towards the north, then the course of the Saguenay River on 126.1km (78.4miles) towards the east until at Tadoussac where it merges with the Saint Lawrence Estuary.[2]
The toponym "bras de Jacob Ouest" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[3]