 The Bostonnais River constitutes the northwestern boundary of Zec (except the northern part of the Bostonnais River where Route 155 is used as the boundary).The southeastern boundary of the territory is bounded by the road leading to the village of Lac Édouard and extends to a bay at the northeast of Lac Édouard (lake).The northeastern boundary of Zec is the "lac du barrage" (dam lake) and the "Bonhomme Lake"

Zec Ménokéosawin is crossed by the Bostonnais River, arriving from the north and passing through the lake Maggie, then lake Deveny.