Troisième lac des Roches is a Lake located in Saint-Raymond; Portneuf, Quebec.

• Latitude: 46° 59' 38'' North   (decimal: 46.9939000)
• Longitude: 72° 3' 58'' West   (decimal: -72.0660999)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Raymond; Portneuf
• GPS Coordinate Locator Map: Troisième lac des Roches Lat/Long