Lac Coulonge is a Lake located in Mansfield-et-Pontefract; Pontiac, Quebec and has an elevation of 94 meters.

• Latitude: 45° 52' 42'' North   (decimal: 45.8783333)
• Longitude: 76° 48' 38'' West   (decimal: -76.8105556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 94 meters
• Location: Mansfield-et-Pontefract; Pontiac
• Atlas of Canada Locator Map: Lac Coulonge
• GPS Coordinate Locator Map: Lac Coulonge Lat/Long