Lac de l'Écluse is a Lake located in Sainte-Perpétue; L'Islet, Quebec.

• Latitude: 47° 6' 53'' North   (decimal: 47.1146999)
• Longitude: 69° 52' 35'' West   (decimal: -69.8764000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Sainte-Perpétue; L'Islet
• GPS Coordinate Locator Map: Lac de l'Écluse Lat/Long