Lac des Roches is a Lake located in Saint-Eugène-de-Ladrière; Rimouski-Neigette, Quebec.

• Latitude: 48° 7' 48'' North   (decimal: 48.1300329)
• Longitude: 68° 35' 32'' West   (decimal: -68.5922460)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Eugène-de-Ladrière; Rimouski-Neigette
• Atlas of Canada Locator Map: Lac des Roches
• GPS Coordinate Locator Map: Lac des Roches Lat/Long