Big Island is a Island located in Thunder Bay, Ontario and has an elevation of 339 meters.

• Latitude: 49° 35' 47'' North   (decimal: 49.5963888)
• Longitude: 86° 27' 10'' West   (decimal: -86.4527777)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 339 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Big Island
• GPS Coordinate Locator Map: Big Island Lat/Long