Lac Mullen is a Lake located in Dépôt-Échouani; La Vallée-de-la-Gatineau, Quebec and has an elevation of 420 meters.

• Latitude: 47° 50' 40'' North   (decimal: 47.8444444)
• Longitude: 75° 39' 19'' West   (decimal: -75.6552778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 420 meters
• Location: Dépôt-Échouani; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: Lac Mullen
• GPS Coordinate Locator Map: Lac Mullen Lat/Long