Lac Serpent is a Lake located in Lac-Ernest; Antoine-Labelle, Quebec and has an elevation of 271 meters.

• Latitude: 46° 13' 24'' North   (decimal: 46.2233333)
• Longitude: 75° 5' 30'' West   (decimal: -75.0916667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 271 meters
• Location: Lac-Ernest; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Serpent
• GPS Coordinate Locator Map: Lac Serpent Lat/Long