| Rivière aux Brochets | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Saguenay-Lac-Saint-Jean |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | Maria-Chapdelaine Regional County Municipality |
| Length: | 11.2km (07miles) |
| Source1: | Lac Stackler |
| Source1 Location: | Rivière-Mistassini |
| Source1 Coordinates: | 49.2117°N -73.1928°W |
| Source1 Elevation: | 386m (1,266feet) |
| Mouth: | Ashuapmushuan River |
| Mouth Location: | Rivière-Mistassini |
| Mouth Coordinates: | 47.1522°N -73.1425°W |
| Mouth Elevation: | 270m (890feet) |
| Progression: | Ashuapmushuan River, Lac Saint-Jean, Saguenay River, Saint Lawrence River |
| Tributaries Left: | (upstream) discharge from Damville lake, stream, discharge from 2nd Lac des Jumeaux |
| Tributaries Right: | (upstream) stream. |
The Rivière aux Brochets is a tributary of the Ashuapmushuan River, flowing in the unorganized territory of Rivière-Mistassini, in the Maria-Chapdelaine Regional County Municipality, in the administrative region of Saguenay–Lac-Saint-Jean, in province of Quebec, in Canada.
The southern part of the Brochets river valley is mainly served by the forest road R0202.[1]
Forestry is the main economic activity in this valley.
The Rivière aux Brochets has its source at the mouth of Stackler Lake (length: ; altitude:). Montagne Plate and Montagne des Bouleaux are located on the northwest side of Stackler Lake. This lake is fed by the discharge (coming from the west) of Lac Vidé and by the discharge (coming from the northwest) of a set of lakes including Chanceux, and Lac Denis.
The mouth of Stackler Lake is located in a forest zone in the unorganized territory of Rivière-Mistassini, at:
From the mouth of Stackler Lake, the Rivière aux Brochets flows over with a drop of, entirely in the forest zone, according to the following segments:
The Brochets River flows into a bend in the river on the northeast bank of the Ashuapmushuan River. This confluence is located downstream of the Rapides du Fer à Cheval, and at:
From the mouth of the Rivière aux Brochets, the current descends the course of the Ashuapmushuan River on, then crosses lac Saint-Jean eastward on (i.e. its full length), follows the course of the Saguenay River via la Petite Décharge on east to Tadoussac where it meets the estuary of Saint Lawrence.[2]
The toponym "rivière aux Brochets" was made official on September 29, 1975, at the Place Names Bank of the Commission de toponymie du Québec.[3]