Lac Trépanier is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec.

• Latitude: 47° 49' 24'' North   (decimal: 47.8233333)
• Longitude: 73° 12' 30'' West   (decimal: -73.2083333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: La Tuque; Le Haut-Saint-Maurice
• GPS Coordinate Locator Map: Lac Trépanier Lat/Long