Lac à Berthiaume is a Lake located in Grenville-sur-la-Rouge; Argenteuil, Quebec and has an elevation of 173 meters.

• Latitude: 45° 39' 35'' North   (decimal: 45.6597693)
• Longitude: 74° 42' 28'' West   (decimal: -74.7076847)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 173 meters
• Location: Grenville-sur-la-Rouge; Argenteuil
• Atlas of Canada Locator Map: Lac à Berthiaume
• GPS Coordinate Locator Map: Lac à Berthiaume Lat/Long