Lac Découpé is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 448 meters.

• Latitude: 49° 10' 18'' North   (decimal: 49.1716667)
• Longitude: 73° 30' 42'' West   (decimal: -73.5116667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 448 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Découpé
• GPS Coordinate Locator Map: Lac Découpé Lat/Long