The course of the river successively crosses the following municipalities: Besides the village areas, forestry and agriculture are the main economic activities in this valley.

[1] The surface of the Salmon River is usually frozen from mid-December to mid-March, except the rapids areas; however, safe circulation on the ice is generally from late December to early March.

It is subject to floods and sudden drops, submerging a large expanse of lowland that borders its banks.

It was navigated by fishing boats and offered the settlers who lived on its shores a good means of transport (Rouillard, 1914).

From the mouth of Danger Lake, the course of the Salmon River descends on 77.0 km (47.8 mi), with a drop of 388 m (1,273 ft), according to the following segments: Upper course of the salmon river (segment of 41.1 km (25.5 mi)) Lower course of the salmon river (segment of 35.9 km (22.3 mi)) The toponym "Rivière au Saumon" was formalized on December 5, 1968, at the Commission de toponymie du Québec.