Lac du Monument is a Lake located in Saint-Théophile; Beauce-Sartigan, Quebec and has an elevation of 591 meters.

• Latitude: 45° 48' 5'' North   (decimal: 45.8014298)
• Longitude: 70° 25' 3'' West   (decimal: -70.4175694)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 591 meters
• Location: Saint-Théophile; Beauce-Sartigan
• Atlas of Canada Locator Map: Lac du Monument
• GPS Coordinate Locator Map: Lac du Monument Lat/Long