Barrage Isidore is a Hydraulic construction located in Saint-Cyrille-de-Lessard; L'Islet, Quebec.

• Latitude: 46° 57' 42'' North   (decimal: 46.9616888)
• Longitude: 70° 16' 9'' West   (decimal: -70.2692364)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Barrage
• Canadian Province/Territory: Quebec
• Location: Saint-Cyrille-de-Lessard; L'Islet
• Atlas of Canada Locator Map: Barrage Isidore
• GPS Coordinate Locator Map: Barrage Isidore Lat/Long