Mahon Lake is a Lake located in Rainy River, Ontario and has an elevation of 389 meters.

• Latitude: 48° 34' 55'' North   (decimal: 48.5819444)
• Longitude: 92° 17' 40'' West   (decimal: -92.2944444)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 389 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Mahon Lake
• GPS Coordinate Locator Map: Mahon Lake Lat/Long