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

• Latitude: 49° 22' 28'' North   (decimal: 49.3744889)
• Longitude: 72° 22' 38'' West   (decimal: -72.3772694)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac du Seuil
• GPS Coordinate Locator Map: Lac du Seuil Lat/Long