From the confluence of the small Jean-Boivin river with the Jean-Boivin river, the current descends successively the latter on towards the northeast, the course of the Cyriac river on to the north, then the current crosses Kénogami Lake on north-east to the dam of Portage-des-Roches, then follows the course of the Chicoutimi river on to the east, then the northeast and the Saguenay river course on east to Tadoussac where it merges with the Saint Lawrence estuary.