Green Island is a Island located in Frontenac, Ontario and has an elevation of 83 meters.

• Latitude: 44° 20' 50'' North   (decimal: 44.3472222)
• Longitude: 76° 24' 13'' West   (decimal: -76.4036111)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 83 meters
• Location: Frontenac
• Atlas of Canada Locator Map: Green Island
• GPS Coordinate Locator Map: Green Island Lat/Long