This body of water straddles the municipality of Ferland-et-Boilleau and Saint-Félix-d'Otis, in the Fjord-du-Saguenay, in the administrative region of Saguenay–Lac-Saint-Jean, in province of Quebec, in Canada.

[1] Forestry is the main economic activity in the sector; recreational tourism, second.

The surface of Lac des Cèdres is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally made from mid-December to mid-March.

Lac des Cèdres is located about 25.1 km (15.6 mi) north of the boundary of the administrative regions of Saguenay-Lac-Saint-Jean.

Its mouth is located to the northwest, at: From the mouth of "Lac des Cèdres", the current: The toponym "lac des Cèdres" was formalized on December 12, 1985, by the Commission de toponymie du Québec.