Lac des Pilasses is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 465 meters.

• Latitude: 49° 8' 11'' North   (decimal: 49.1363889)
• Longitude: 73° 30' 15'' West   (decimal: -73.5041667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 465 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac des Pilasses
• GPS Coordinate Locator Map: Lac des Pilasses Lat/Long