Lac Lognon is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 394 meters.

• Latitude: 49° 24' 27'' North   (decimal: 49.4075)
• Longitude: 74° 11' 12'' West   (decimal: -74.1866667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 394 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Lognon
• GPS Coordinate Locator Map: Lac Lognon Lat/Long