Lac Fortin is a Lake located in Sainte-Apolline-de-Patton; Montmagny, Quebec and has an elevation of 431 meters.

• Latitude: 46° 51' 35'' North   (decimal: 46.8597456)
• Longitude: 70° 11' 28'' West   (decimal: -70.1911794)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 431 meters
• Location: Sainte-Apolline-de-Patton; Montmagny
• Atlas of Canada Locator Map: Lac Fortin
• GPS Coordinate Locator Map: Lac Fortin Lat/Long