Lac Cognac is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 425 meters.

• Latitude: 49° 33' 55'' North   (decimal: 49.5652778)
• Longitude: 74° 12' 25'' West   (decimal: -74.2069444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 425 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Cognac
• GPS Coordinate Locator Map: Lac Cognac Lat/Long