Lac Avoca is a Lake located in Grenville-sur-la-Rouge; Argenteuil, Quebec.

• Latitude: 45° 44' 40'' North   (decimal: 45.7443999)
• Longitude: 74° 46' 24'' West   (decimal: -74.7732999)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Grenville-sur-la-Rouge; Argenteuil
• GPS Coordinate Locator Map: Lac Avoca Lat/Long