Lac Tortue is a Lake located in Notre-Dame-de-la-Merci; Matawinie, Quebec and has an elevation of 360 meters.

• Latitude: 46° 15' 38'' North   (decimal: 46.2605957)
• Longitude: 74° 0' 24'' West   (decimal: -74.0065420)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 360 meters
• Location: Notre-Dame-de-la-Merci; Matawinie
• Atlas of Canada Locator Map: Lac Tortue
• GPS Coordinate Locator Map: Lac Tortue Lat/Long