Lac du Monaco is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec.

• Latitude: 49° 18' 20'' North   (decimal: 49.3055901)
• Longitude: 72° 22' 13'' West   (decimal: -72.3703090)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac du Monaco
• GPS Coordinate Locator Map: Lac du Monaco Lat/Long