Lac Trépanier is a Lake located in Saint-Nazaire; Lac-Saint-Jean-Est, Quebec and has an elevation of 129 meters.

• Latitude: 48° 33' 43'' North   (decimal: 48.5619444)
• Longitude: 71° 28' 45'' West   (decimal: -71.4791667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 129 meters
• Location: Saint-Nazaire; Lac-Saint-Jean-Est
• Atlas of Canada Locator Map: Lac Trépanier
• GPS Coordinate Locator Map: Lac Trépanier Lat/Long