Collin ZEC occupies an area of 427 square kilometres (165 sq mi) inside the unorganized Lac-Matawin territory.

The southern boundary of the ZEC Collin is located close to the Matawin West River and about six miles northwest of Saint-Michel-des-Saints, in the administrative region of Lanaudière.

[2] Located in one of the good wildlife areas of Quebec, the ZEC Collin is populated by moose, black bear and small hunted animal.

In 2014 and 2015, the Collin ZEC will set up spawning grounds for brook trout in lakes Berceuse, Caché, Clair, Conscrit, Cornemuse, Desève, Froid, "de la Hauteur" and "du Milieu" (the Middle).

The ZEC is an ideal site of ecological research in the area of sugar maple-yellow birch as the animal side, that plant or aquatic.