Petit lac des Roches is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 411 meters.

• Latitude: 49° 16' 16'' North   (decimal: 49.2711111)
• Longitude: 73° 18' 14'' West   (decimal: -73.3038889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 411 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Petit lac des Roches
• GPS Coordinate Locator Map: Petit lac des Roches Lat/Long