| Trompeuse 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: | Lac-Saint-Jean-Est Regional County Municipality |
| Subdivision Type5: | Unorganized territory |
| Subdivision Name5: | Lac-Jacques-Cartier |
| Length: | 17.5km (10.9miles) |
| Discharge1 Location: | Lac-Jacques-Cartier |
| Source1: | Lac Trompeur |
| Source1 Location: | Lac-Jacques-Cartier |
| Source1 Coordinates: | 47.9112°N -71.5854°W |
| Source1 Elevation: | 612m (2,008feet) |
| Mouth: | Rivière aux Écorces |
| Mouth Location: | Lac-Jacques-Cartier |
| Mouth Coordinates: | 47.8331°N -71.6858°W |
| Mouth Elevation: | 398m (1,306feet) |
| Tributaries Left: | (from the mouth) Ruisseau Cloutier, discharge of lakes Mafflé and du Festin, ruisseau Fortin. |
| Tributaries Right: | (from the mouth) Discharge of lac Festonné, discharge of lac du Chasseur. |
The Rivière Trompeuse is a tributary of the rivière aux Écorces, flowing in the unorganized territory of Lac-Jacques-Cartier, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada. The course of the Trompeuse River crosses the northwestern part of the Laurentides Wildlife Reserve.
The Trompeuse river valley is located between route 169 connecting Quebec (city) to Chicoutimi and route 155 connecting La Tuque to Chambord. This valley is also served by some secondary forest roads of the Laurentides Wildlife Reserve, especially for forestry and recreational tourism activities.[1]
Forestry is the main economic activity in this valley; recreational tourism, second. On the rivière aux Écorces, downstream from the confluence of the Trompeuse river and at the head of the lac aux Écorces des spawning grounds are recognized as one of the best spring fishing sites in the territory of the Laurentides Wildlife Reserve.
The surface of the Trompeuse River is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally made from mid-December to mid-March.
The main watersheds neighboring the Trompeuse River are:
The Trompeuse River originates at Trompeur Lake (length: ; altitude:) in a forest area in the Laurentides Wildlife Reserve. This source is located at:
From its source (Trompeur Lake), the Trompeuse River flows over with a drop of entirely in the forest zone, according to the following segments:
The Trompeuse river flows on the northeast bank of the rivière aux Canots. This confluence is located at:
From the mouth of the Trompeuse river, the current successively follows the course of the rivière aux Écorces on generally towards the north, the course of the Pikauba River on generally to the north, crosses Kenogami Lake on north-east to barrage de Portage-des-Roches, then follows the course of the Chicoutimi River on towards the east, then the northeast and the course of the Saguenay river on towards the east until Tadoussac where it merges with the Saint Lawrence estuary.
The toponym “Rivière Trompeuse” appears on a 1928 map. Two theses can explain the meaning of this toponym:
The toponym “Rivière Trompeuse” was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[4]