Lac Long is a Lake located in Rivière-Saint-Jean; Minganie, Quebec and has an elevation of 187 meters.

• Latitude: 50° 28' 58'' North   (decimal: 50.4827778)
• Longitude: 64° 11' 40'' West   (decimal: -64.1944444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 187 meters
• Location: Rivière-Saint-Jean; Minganie
• Atlas of Canada Locator Map: Lac Long
• GPS Coordinate Locator Map: Lac Long Lat/Long