Lac des Plongeons is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec.

• Latitude: 49° 40' 57'' North   (decimal: 49.6825545)
• Longitude: 72° 49' 50'' West   (decimal: -72.8306670)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac des Plongeons
• GPS Coordinate Locator Map: Lac des Plongeons Lat/Long