Petit-Lac-Long is a Unincorporated area located in Sainte-Agathe-des-Monts; Les Laurentides, Quebec and has an elevation of 403 meters.

• Latitude: 46° 7' 48'' North   (decimal: 46.1300427)
• Longitude: 74° 18' 21'' West   (decimal: -74.3057213)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 403 meters
• Location: Sainte-Agathe-des-Monts; Les Laurentides
• Atlas of Canada Locator Map: Petit-Lac-Long
• GPS Coordinate Locator Map: Petit-Lac-Long Lat/Long