Lac Somme is a Lake located in Réservoir-Dozois; Vallée-de-l'Or, Quebec and has an elevation of 413 meters.

• Latitude: 47° 39' 47'' North   (decimal: 47.6630556)
• Longitude: 76° 56' 3'' West   (decimal: -76.9341667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 413 meters
• Location: Réservoir-Dozois; Vallée-de-l'Or
• Atlas of Canada Locator Map: Lac Somme
• GPS Coordinate Locator Map: Lac Somme Lat/Long