The ZEC de la Rivière-Sainte-Marguerite is a "zone d'exploitation contrôlée" (controlled harvesting zone) (ZEC) in the unorganized territory of the Mont-Valin, in Le Fjord-du-Saguenay Regional County Municipality, in the administrative region of Saguenay-Lac-Saint-Jean, Quebec, Canada.

The main tributaries of the Sainte-Marguerite River are: Barre, Epiphanie, Spruce and "de la Cage".

The route of the Sainte-Marguerite River pass through several rapids, including (from the top level of the river): 'Administrative Office of Zec' The administrative office of the Zec, located at 160 Main Street, Sacred Heart, delivers users Zec canes access rights, fishing permits for salmon, rental boots, flies, lodging, camping, regulations, etc.

Wading is convenient for the majority of pits given the shallowness of the water; however, some require the use of a boat (without motor).

Between June 1 and September 15, each angler must hold one of the three types of licenses are salmon: catch and release, a day or year.

Each angler must comply with the daily bag limit and return to the water all large salmon.