Lac Long is a Lake located in Franquelin; Manicouagan, Quebec and has an elevation of 172 meters.

• Latitude: 49° 21' 16'' North   (decimal: 49.3544907)
• Longitude: 67° 43' 9'' West   (decimal: -67.7191743)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 172 meters
• Location: Franquelin; Manicouagan
• Atlas of Canada Locator Map: Lac Long
• GPS Coordinate Locator Map: Lac Long Lat/Long