Lac Langis is a Lake located in Lac-Walker; Sept-Rivières, Quebec and has an elevation of 187 meters.

• Latitude: 50° 8' 41'' North   (decimal: 50.1447638)
• Longitude: 67° 23' 23'' West   (decimal: -67.3896612)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 187 meters
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac Langis
• GPS Coordinate Locator Map: Lac Langis Lat/Long