The Rivière du Gouffre Sud-Ouest is a tributary of the eastern bank of the intermediate part of the Rivière du Gouffre, flowing in the unorganized territory of Lac-Pikauba and the municipality of Saint-Urbain, in the Charlevoix Regional County Municipality, in the administrative region of the Capitale-Nationale, in the province of Quebec, in Canada. The lower and middle parts of this valley are served by a secondary forest road. Forestry is the main economic activity in this valley; recreational tourism, second. The surface of the Gouffre Sud-Ouest river is generally frozen from the beginning of December until the beginning of April; however, safe circulation on the ice is generally done from mid-December to the end of March. The water level of the river varies with the seasons and the precipitation; the spring flood generally occurs in April.
Geography
The Gouffre Sud-Ouest river takes its source from Prime lake located in forest area and encased in the mountains. The mouth of this lake is located at the bottom of the bay southeast of the lake, either:
From Prime Lake, the course of the Gouffre Sud-Ouest river descends on in a generally deep valley, with a drop of, depending on the segments following:
eastward across Lake Favre, to its mouth ;
east to the Mouches stream. Note: Les Mouches stream turns out to be the outlet of Lac à l'Écluse;
northwards to the outlet from Lac de la Truite, then north-east in a deep valley, bending east at the end segment, to the outlet of Lac du Gros Castor;
to the east in a deep valley passing south of Mont des Lièvres, Mont des Perdrix, from Mont des Morios and Tette du Mont, to a stream ;
towards the east by forming a large loop towards the south at the start of the segment, and crossing a long series of rapids, collecting a stream, until it is joined by a stream from the northwest;
towards the south-east by collecting a stream and another, up to the stream of Bergeron ;
to the south by forming a large loop towards the west to collect a stream, up to the outlet of Lac aux Bleuets ;
towards the south-east, forming a few loops until the outlet of two lakes;
towards the south-east by forming some loops, until its mouth.
The Rivière du Gouffre Sud-Ouest flows downstream from a river loop on the west bank of the Rivière du Gouffre, in the municipality of Saint-Urbain. This mouth is located at:
From the mouth of the Gouffre Sud-Ouest river, the current descends on with a drop of following the course of the rivière du Gouffre which flows into Baie-Saint-Paul in the St. Lawrence River.
Toponymy
According to research carried out in cartography, this toponymic designation appears on the regional map of the Ministry of Lands and Forests, 1915 edition. This designation also appears on regional map number 3-Est, 1943. The toponymic variants of this watercourse are: North-West Arm, South-West Arm, North-West of Rivière du Gouffre, Rivière Croche and Rivière du Gouffre North-West. The toponym "Rivière du Gouffre Sud-Ouest" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec.
