Alstonvale is a Unincorporated area located in Hudson; Vaudreuil-Soulanges, Quebec and has an elevation of 33 meters.

• Latitude: 45° 28' 22'' North   (decimal: 45.4728201)
• Longitude: 74° 10' 58'' West   (decimal: -74.1826682)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 33 meters
• Location: Hudson; Vaudreuil-Soulanges
• Atlas of Canada Locator Map: Alstonvale
• GPS Coordinate Locator Map: Alstonvale Lat/Long