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.

This valley is also served by some secondary forest roads of the Laurentides Wildlife Reserve, especially for forestry and recreational tourism activities.

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.

This source is located at: From its source (Trompeur Lake), the Trompeuse River flows over 17.5 kilometres (10.9 mi) with a drop of 214 metres (702 ft) entirely in the forest zone, according to the following segments: The Trompeuse river flows on the northeast bank of the rivière aux Canots.