Lac Langy is a Lake located in Authier-Nord; Abitibi-Ouest, Quebec and has an elevation of 326 meters.

• Latitude: 48° 55' 24'' North   (decimal: 48.9233333)
• Longitude: 78° 53' 21'' West   (decimal: -78.8891667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 326 meters
• Location: Authier-Nord; Abitibi-Ouest
• Atlas of Canada Locator Map: Lac Langy
• GPS Coordinate Locator Map: Lac Langy Lat/Long