Lac Coulonge is a Lake located in Renfrew, Ontario and has an elevation of 91 meters.

• Latitude: 45° 52' 53'' North   (decimal: 45.8813888)
• Longitude: 76° 49' 38'' West   (decimal: -76.8272222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Ontario
• Elevation: 91 meters
• Location: Renfrew
• Atlas of Canada Locator Map: Lac Coulonge
• GPS Coordinate Locator Map: Lac Coulonge Lat/Long