Lac Sentinelle is a Lake located in Lac-Marguerite; Antoine-Labelle, Quebec.

• Latitude: 47° 5' 10'' North   (decimal: 47.0861111)
• Longitude: 75° 57' 57'' West   (decimal: -75.9658333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Marguerite; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Sentinelle
• GPS Coordinate Locator Map: Lac Sentinelle Lat/Long