Portage Island is a Island located in Thunder Bay, Ontario and has an elevation of 283 meters.

• Latitude: 50° 14' 7'' North   (decimal: 50.2352777)
• Longitude: 88° 21' 48'' West   (decimal: -88.3633333)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 283 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Portage Island
• GPS Coordinate Locator Map: Portage Island Lat/Long