Lac Denise is a Lake located in Harrington; Argenteuil, Quebec.

• Latitude: 45° 46' 21'' North   (decimal: 45.7725450)
• Longitude: 74° 32' 37'' West   (decimal: -74.5435105)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Harrington; Argenteuil
• GPS Coordinate Locator Map: Lac Denise Lat/Long