Lac Achen is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 388 meters.

• Latitude: 49° 20' 50'' North   (decimal: 49.3472222)
• Longitude: 73° 58' 29'' West   (decimal: -73.9747222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 388 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Achen
• GPS Coordinate Locator Map: Lac Achen Lat/Long