Lac Therrien is a Lake located in Tourville; L'Islet, Quebec and has an elevation of 403 meters.

• Latitude: 47° 1' 55'' North   (decimal: 47.0319659)
• Longitude: 70° 6' 39'' West   (decimal: -70.1109013)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 403 meters
• Location: Tourville; L'Islet
• Atlas of Canada Locator Map: Lac Therrien
• GPS Coordinate Locator Map: Lac Therrien Lat/Long