Lac de la Beauce is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec.

• Latitude: 49° 55' 50'' North   (decimal: 49.9306200)
• Longitude: 72° 17' 13'' West   (decimal: -72.2870371)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac de la Beauce
• GPS Coordinate Locator Map: Lac de la Beauce Lat/Long