Lac des Roches is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 443 meters.

• Latitude: 49° 20' 39'' North   (decimal: 49.3441667)
• Longitude: 73° 10' 3'' West   (decimal: -73.1675)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 443 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac des Roches
• GPS Coordinate Locator Map: Lac des Roches Lat/Long