According to the Second Saguenay theory, this vast depression is the extension of the fault and collapse ditch of the Kenogami Lake which is located upstream less than twenty kilometers.

Long before the landing in 1838 of the Charlevoix settlers, founders of the Saint-Alexis-sur-l'Islet parish, this haven sheltered at the end of the bay constitutes a place of meeting and exchanges for the Amerindian populations.

It is through this bay that the bauxite of the aluminum smelters of Saguenay-Lac-Saint-Jean transits to the port facilities of Port-Alfred [fr] to be discharged subsequently carried by train to the various factories of Rio Tinto Alcan.

does not come under the trivial onomatopoeia, but probably from an alteration of a Montagnais toponym almost unpronounceable in French which means in Algonquin place where bark is exchanged.

In Saguenay-Lac-Saint-Jean, certain places, moreover, correlated with the hydrographic basin leading towards the bay on the homonymous Saguenay also use this appellation: The "Baie des Ha!

the current follows the course of the Saguenay River on 99.5 km (61.8 mi) eastward to Tadoussac where it merges with the Estuary of Saint Lawrence.

The presence of these two layers separated by a halocline thickness promotes a rich biodiversity and makes it a very favorable environment for life.