| Métascouac South River | |
| 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: | La Côte-de-Beaupré Regional County Municipality, La Jacques-Cartier Regional County Municipality |
| Subdivision Type5: | Unorganized territory |
| Subdivision Name5: | Lac-Jacques-Cartier Lac-Croche |
| Length: | 14.6km (09.1miles) |
| Discharge1 Location: | Lac-Croche |
| Source1: | Lac des Lynx |
| Source1 Location: | Lac-Jacques-Cartier |
| Source1 Coordinates: | 47.7173°N -71.7218°W |
| Source1 Elevation: | 623m (2,044feet) |
| Mouth: | Métascouac River |
| Mouth Location: | Lac-Croche |
| Mouth Coordinates: | 47.6989°N -71.8336°W |
| Mouth Elevation: | 445m (1,460feet) |
| Tributaries Left: | (upward from the mouth) Décharge d'un petit lac non identifié, ruisseau non identifié, ruisseau non identifié. |
| Tributaries Right: | (upward from the mouth) Décharge du Lac Pois, décharge du lac Lemaine. |
The Métascouac South River is a tributary of the eastern bank of the Métascouac River, flowing in the central west part of the Laurentides Wildlife Reserve, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada. The river flows through the regional county municipalities of:
Forestry is the main economic activity in this valley; recreational tourism, second.
The surface of the Métascouac South River (except the rapids areas) is usually frozen from the end of November to the beginning of April, however the safe circulation on the ice is generally done from mid-December to the end of March.
The main watersheds near the Métascouac Sud river are:
The Métascouac South river has its source at the mouth of Lac des Lynx (length: ; altitude:). This landlocked lake has a marsh area in the southeast and another in the north. It is fed by the outlet (coming from the south-east) from Lyre lake and the outlet (coming from the north) from an unidentified lake.
From its source (mouth of Lac des Lyns), the course of the South Métascouac River flows over, with a drop of according to the following segments:
From the confluence of the Métascouac South river, the current flows over:
The toponym Rivière Métascouac Sud was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[2]