Middlebrun Island is a Island located in Thunder Bay, Ontario and has an elevation of 184 meters.

• Latitude: 48° 20' 39'' North   (decimal: 48.3441666)
• Longitude: 88° 45' 17'' West   (decimal: -88.7547222)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 184 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Middlebrun Island
• GPS Coordinate Locator Map: Middlebrun Island Lat/Long