Big Island is a Island located in Thunder Bay, Ontario and has an elevation of 419 meters.

• Latitude: 48° 45' 32'' North   (decimal: 48.7588888)
• Longitude: 89° 31' 38'' West   (decimal: -89.5272222)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 419 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Big Island
• GPS Coordinate Locator Map: Big Island Lat/Long