Lac Armstrong is a Lake located in Amherst; Les Laurentides, Quebec and has an elevation of 348 meters.

• Latitude: 46° 5' 13'' North   (decimal: 46.0869898)
• Longitude: 74° 44' 11'' West   (decimal: -74.7362930)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 348 meters
• Location: Amherst; Les Laurentides
• Atlas of Canada Locator Map: Lac Armstrong
• GPS Coordinate Locator Map: Lac Armstrong Lat/Long