Union Lake is a Lake located in Rainy River; Thunder Bay, Ontario and has an elevation of 448 meters.

• Latitude: 48° 49' 41'' North   (decimal: 48.8280555)
• Longitude: 90° 57' 47'' West   (decimal: -90.9630555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 448 meters
• Location: Rainy River; Thunder Bay
• Atlas of Canada Locator Map: Union Lake
• GPS Coordinate Locator Map: Union Lake Lat/Long