Lac Gagnon is a Lake located in Duhamel; Papineau, Quebec and has an elevation of 225 meters.

• Latitude: 46° 6' 33'' North   (decimal: 46.1091667)
• Longitude: 75° 7' 37'' West   (decimal: -75.1269444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 225 meters
• Location: Duhamel; Papineau
• Atlas of Canada Locator Map: Lac Gagnon
• GPS Coordinate Locator Map: Lac Gagnon Lat/Long