The main watersheds adjacent to the Valin River are: • north side:
Shipshaw River,
Étienne River (Shipshaw River),
Bras du Nord (Valin River),
Bras de l'Enfer (Valin River),
Bras Fournier,
Saint-Louis River (Valin River tributary),
La Mothe Lake; • east side:
Rivière aux Outardes (Saguenay River),
Sainte-Marguerite River,
Saguenay River; • south side: Saguenay river; • west side:
Caribou River (Saguenay River),
Shipshaw River. The mouth of the Valin River flows onto the north bank of the Saguenay River in the municipality of Saint-Fulgence. This confluence of the Valin river is located at: • northeast of the mouth of the
Shipshaw River; • east of downtown
Alma; • west of the mouth of the Saguenay River. From the dam at the mouth of the Valin river, the current follows the course of the Saguenay river to the height of
Tadoussac where it merges with the
Saint-Laurent river. == Toponymy ==