The lower part of the valley of this watercourse is served by route 138 which runs along the northwest shore of the St. Lawrence River and by the road of the rang Sainte-Anne. The "chemin des érables" and Port-au-Saumon Lake Road serve the upper reaches of this stream.
Forestry is the main economic activity of the sector; recreational and tourism activities (including vacationing around Lac au Saumon), second.
The surface of this stream is generally frozen from mid-December to late-March. Nevertheless, safe ice traffic is generally from late December to mid-March.
Geography
The main hydrographic slopes near the "Port-au-Saumon River" are:
The Port-au-Saumon River has its source at "Lac du Port-au-Saumon" (length: 0.7km (0.43mi); altitude: 288m (945ft)) which is clover-shaped deformed and in forest area. The resort is developed around the northern appendage of the lake. The mouth of the lake is at the bottom of the eastern appendage.
From the mouth of Port-au-Saumon Lake, the course of the Port-au-Saumon River descends by traveling 20.8km (12.9mi) according to the following segments:
Upper part of the Port au Saumon River (segment of 15.1km (9.4mi))
4.3km (2.7mi) easterly along the south side of Port-au-Saumon Lake Road, then south-east, winding to the confluence of the Lake of Port au Saumon (coming from the north);
3.3km (2.1mi) southeast winding to a creek (coming from the west);
7.5km (4.7mi) south winding to a creek (coming from the west);
Lower part of the Port au Saumon River (segment of 5.7km (3.5mi))
4.9km (3.0mi) northeasterly under the Sainte-Anne Rang Road Bridge, forming a southerly curve across a series of rapids over this segment to the bridge of the Route 138 (Malcom-Fraser Boulevard);
0.8km (0.50mi) southeasterly crossing a series of rapids to the east shore of Port-au-Saumon Inlet which is interelected in the Gulf of St. Lawrence. Sabere and Camarine Islands guard the exit of this bay.[3]
Toponymy
The French toponym "Port-au-Saumon" is linked to the bay, the hamlet, the river and the lake.
The Comporté River is a tributary of the Malbaie River flowing generally southward into the territory of the town of La Malbaie in the Eastern part of the Charlevoix Regional County Municipality, in Quebec, in Canada. This river has a gap in elevation of 489 m (1,604 ft). After several series of rapids, waterfalls and falls in forest area, it flows into the Malbaie River between the village of Clermont and the town of La Malbaie.
The ruisseau à John is a tributary of the Malbaie River, flowing into the Lalemant unorganized territory, into the Le Fjord-du-Saguenay Regional County Municipality, in the Saguenay-Lac-Saint-Jean administrative region, in the province [of Quebec, in Canada. The course of the stream in John crosses the zec du Lac-Brébeuf.
The rivière à la Cruche is a tributary of the Malbaie River, flowing into the Lac-Pikauba unorganized territory, into the Regional County Municipality (MRC) of Charlevoix Regional County Municipality, in the Capitale-Nationale administrative region, in the province of Quebec, in Canada. Most of the "rivière à la Cruche" flows to the eastern end of the Laurentides Wildlife Reserve except for the lower part of its course.
The Porc-Épic River is a tributary of the Malbaie River, flowing into the unorganized territory of Lac-Pikauba, in Charlevoix Regional County Municipality, in the Capitale-Nationale administrative region, in the province of Quebec, in Canada. Most of the Porc-Épic River flows into the territory of the Zec des Martres, except for the last 1.6 km (0.99 mi) before reaching its mouth.
The Port au Persil River is a tributary of the northwest shore of the St. Lawrence River, flowing into the city of Saint-Siméon in the Charlevoix-Est Regional County Municipality, in the Capitale-Nationale administrative region, Quebec, Canada. The course of this river flows into the Saint Lawrence River in the village of Port au Persil, northeast of the city of La Malbaie.
The rivière du Gouffre is a tributary of the left bank of the Saint-Laurent river, flowing into the Capitale-Nationale administrative region, Quebec (Canada). This watercourse flows through Regional County Municipality from:
The Baie des Rochers River is a tributary of the northwest shore of the St. Lawrence River, flowing into the town of Saint-Siméon, in the Charlevoix-Est Regional County Municipality, in the Capitale-Nationale administrative region, Quebec, Canada. The course of this river goes through the village of Baie-des-Rochers before going to the Bay of Rochers, in the St. Lawrence River.
The Port aux Quilles River is a tributary of the northwest shore of the St. Lawrence River flowing into the city of Saint-Siméon in the Charlevoix-Est Regional County Municipality, in the Capitale-Nationale administrative region, Quebec, Canada. The course of this river flows into the St. Lawrence River in the village of Port-aux-Quilles, northeast of the town of La Malbaie.
The Loutre River is a tributary of the northwest shore of the St. Lawrence River, flowing into the town of La Malbaie, between the towns of Cap-à-l'Aigle and Saint-Fidèle, in the Charlevoix-Est Regional County Municipality, in the administrative region of Capitale-Nationale, in Quebec, in Canada. The course of this river flows into the St. Lawrence in the hamlet of Bas-de-l'Anse, northeast of the town of La Malbaie.
The Noire River is a tributary of the North-West shore of Saint Lawrence River flowing north-east of La Malbaie, in the municipality of Saint-Siméon, in Charlevoix-Est Regional County Municipality, in Quebec, in Canada.
The rivière Noire du Milieu is a tributary of the south shore of the Noire River, flowing entirely into the unorganized territory of Mont-Élie, Quebec, in the Charlevoix-Est Regional County Municipality, in Capitale-Nationale, in Quebec, Canada. The upper part is in the zec des Martres, around Plongeon Lake.
The Rivière Noire Sud-Ouest is a tributary of the south shore of the Noire River flowing, entirely in the unorganized territory from Mont-Élie in Charlevoix-Est Regional County Municipality, in Quebec, Canada.
The Mailloux River is a tributary of the north shore of the St. Lawrence River, in the municipality of La Malbaie, in the Charlevoix-Est Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The Rivière du Premier Rang is a tributary of the west bank of the Jean-Noël River flowing on the north bank of the Saint Lawrence River, in the municipalities of Saint-Hilarion and Les Éboulements, in the MRC of Charlevoix Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The Jean-Noël River is a tributary of the north shore of the Saint Lawrence River, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada. This river flows through the regional county municipalities (MRC) of:
The Jean-Noël Nord-Est river is a tributary of the north bank of the Jean-Noël River, flowing in the town of La Malbaie and the municipality of Saint-Irénée, in the Charlevoix-Est Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The rivière du Seigneur is a tributary of the northwest shore of the St. Lawrence River, in the municipality of Les Éboulements, in the Charlevoix Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The Rivière des Boudreault is a tributary of the northwest shore of the St. Lawrence River, in the municipality of Les Éboulements, in the Charlevoix Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.
The Chicago River is a tributary of the east bank of the middle part of the Rivière du Gouffre, flowing in the administrative region of Capitale-Nationale, in the province from Quebec, to Canada. The course of this river flows through the regional county municipalities (MRCs) of:
The Moe River is a watercourse flowing in the administrative region of Estrie to Quebec, Canada. It is a tributary of the rivière aux Saumons which successively flows into the Massawippi River, into the Saint-François River, therefore a sub-tributary of the Saint Lawrence River.
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