Lac Décibel is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 454 meters.

• Latitude: 48° 44' 57'' North   (decimal: 48.7491667)
• Longitude: 73° 49' 12'' West   (decimal: -73.82)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 454 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Décibel
• GPS Coordinate Locator Map: Lac Décibel Lat/Long