Le Lac-de-l'Ancre is a Unincorporated area located in L'Anse-Saint-Jean; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 6' 38'' North   (decimal: 48.1105813)
• Longitude: 70° 12' 51'' West   (decimal: -70.2142336)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Secteur
• Canadian Province/Territory: Quebec
• Location: L'Anse-Saint-Jean; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Le Lac-de-l'Ancre
• GPS Coordinate Locator Map: Le Lac-de-l'Ancre Lat/Long