Lac Trefflé is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 210 meters.

• Latitude: 49° 8' 50'' North   (decimal: 49.1472264)
• Longitude: 72° 13' 48'' West   (decimal: -72.2299466)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 210 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Trefflé
• GPS Coordinate Locator Map: Lac Trefflé Lat/Long