Barnum Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 400 meters.

• Latitude: 50° 26' 33'' North   (decimal: 50.4425000)
• Longitude: 90° 24' 5'' West   (decimal: -90.4013888)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 400 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Barnum Lake
• GPS Coordinate Locator Map: Barnum Lake Lat/Long