Costello Lake is a Lake located in Timiskaming, Ontario and has an elevation of 264 meters.

• Latitude: 47° 58' 16'' North   (decimal: 47.9711111)
• Longitude: 79° 38' 11'' West   (decimal: -79.6363888)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 264 meters
• Location: Timiskaming
• Atlas of Canada Locator Map: Costello Lake
• GPS Coordinate Locator Map: Costello Lake Lat/Long