Lac du Hibou des Marais is a Lake located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 50° 49' 24'' North   (decimal: 50.8233333)
• Longitude: 67° 35' 35'' West   (decimal: -67.5930556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac du Hibou des Marais
• GPS Coordinate Locator Map: Lac du Hibou des Marais Lat/Long