Gourdeau Island is a Island located in Thunder Bay, Ontario and has an elevation of 186 meters.

• Latitude: 48° 30' 43'' North   (decimal: 48.5119444)
• Longitude: 88° 23' 38'' West   (decimal: -88.3938888)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 186 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Gourdeau Island
• GPS Coordinate Locator Map: Gourdeau Island Lat/Long