Lac du Quarante-Cinq is a Lake located in Lac-Saguay; Antoine-Labelle, Quebec and has an elevation of 430 meters.

• Latitude: 46° 34' 33'' North   (decimal: 46.5758333)
• Longitude: 75° 6' 13'' West   (decimal: -75.1036111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 430 meters
• Location: Lac-Saguay; Antoine-Labelle
• Atlas of Canada Locator Map: Lac du Quarante-Cinq
• GPS Coordinate Locator Map: Lac du Quarante-Cinq Lat/Long