(upward from the mouth) Le Grand Ruisseau, Blanche River, outlet of Lac Marchand, outlet of Lac Pinatel, outlet of Lac Crépeau, outlet of Lac Gareau.
• right
(upward from the mouth) Discharge from Lake at Shields, discharge from Lake Lévis, discharge from Lake Morgan, discharge from Lac à Foin and Lac Curley.
The course of the river passes on the south side of the village of Rawdon.[citation needed]
Forestry s the main economic activity in the upper part of the valley, but there is also agriculture in the middle and the lower parts except in the villages.[1]
Geography
The Red River takes its source at the mouth of Couture Lake (length: 0.8 km (0.50 mi); altitude: 281 m (922 ft)), taking the shape of a mushroom and located in the north-eastern part of Chertsey. The mouth of this lake is located 12.1 km (7.5 mi) west of the center of the village of Sainte-Béatrix, at 14.6 km (9.1 mi) north of the center of village of Rawdon, at 6.5 km (4.0 mi) east of the Ouareau river.[citation needed]
From the mouth of Couture Lake, the Rouge River flows over 56.5 km (35.1 mi), with a drop of 253 m (830 ft), according to the following segments:[citation needed]
Upper course of Rouge River (segment of 24.6 km (15.3 mi))
1.2 km (0.75 mi) towards the south-east, up to the limit of Saint-Alphonse-Rodriguez;
1.0 km (0.62 mi) north in Saint-Alphonse-Rodriguez, to the outlet of Lac Gareau (coming from the north);
2.8 km (1.7 mi) towards the northeast, to the northern end of Lac Gareau;
2.8 km (1.7 mi) towards the south, successively crossing Lac Joly, Lac de la Fromantière (length: 1.5 km (0.93 mi); altitude: 221 km (137 mi)) and Lake Dontigny (length: 1.3 km (0.81 mi); altitude: 221 km (137 mi)), to the dam to the south of the latter;
2.5 km (1.6 mi) south to the outlet of Morgan Lake (coming from the west);
0.8 km (0.50 mi) towards the south-east, along the limit between Saint-Alphonse-Rodriguez and Chertsey, to the outlet of lac Marchand (coming from the east);
3.6 km (2.2 mi) south into Chertsey, to the forest road bridge;
7.7 km (4.8 mi) southward, to the north shore of Rawdon lake;
2.2 km (1.4 mi) towards the south, crossing Rawdon lake (length: 2.9 km (1.8 mi); altitude: 155 m (509 ft)) over its full length, up to at the dam at its mouth. Note: Rawdon lake follows the shape of the letter L, the foot of which is oriented towards the east; this lake is located in the village of Rawdon;
Intermediate course of the Rouge River (segment of 31.9 km (19.8 mi))
From the mouth of Rawdon Lake, the Rouge River flows over:[citation needed]
2.6 km (1.6 mi) east passing north of the village, forming a hook south, then a large S, to the route 348 (Kildare Road);
8.2 km (5.1 mi) (or 2.9 km (1.8 mi) in a direct line) to the east, first forming a loop to the north, then two loops to the south, collecting the discharge (coming from the southwest) of Lake Joe which is located in the middle of a campground, and meandering until crossing the Nadeau road, until the confluence of the Blanche river (coming from the northwest );
6.8 km (4.2 mi) (or 4.1 km (2.5 mi) in a direct line) eastward, crossing Lane Road, 5th Rang Road/Wilfrid Road and chemin du 4th Rang, and winding up to the limit of Saint-Ambroise-de-Kildare;
1.1 km (0.68 mi) (or 0.5 km (0.31 mi) in a direct line) towards the south-east, winding up to the limit of Chertsey;
2.1 km (1.3 mi) (or 1.5 km (0.93 mi) in a direct line) south-east in Chertsey, winding up to the route 346 (rue Héroux-Rang Double);
5.5 km (3.4 mi) (or 2.3 km (1.4 mi) in a direct line) towards the southeast, collecting the waters of Le Grand Ruisseau (Red River) (coming from the north) and meandering to the edge of Crabtree;
5.6 km (3.5 mi) (or 4.4 km (2.7 mi) in a direct line) south-east in Crabtree, crossing the chemin Saint-Jacques and the route 158 at the end of the segment and winding up to the confluence of the river.[1]
The Red River empties on the north bank of the Ouareau river which descends towards the southeast to the north bank of the L'Assomption River. This confluence is located at:[citation needed]
