Lac des Roches is a Lake located in Lac-à-la-Croix; La Mitis, Quebec.

• Latitude: 48° 16' 0'' North   (decimal: 48.2667122)
• Longitude: 67° 39' 41'' West   (decimal: -67.6613867)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-à-la-Croix; La Mitis
• Atlas of Canada Locator Map: Lac des Roches
• GPS Coordinate Locator Map: Lac des Roches Lat/Long