Threemile Lake is a Lake located in Rainy River, Ontario and has an elevation of 358 meters.

• Latitude: 48° 26' 2'' North   (decimal: 48.4338888)
• Longitude: 92° 12' 7'' West   (decimal: -92.2019444)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 358 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Threemile Lake
• GPS Coordinate Locator Map: Threemile Lake Lat/Long