Grave Island is a Island located in Prince Edward, Ontario and has an elevation of 87 meters.

• Latitude: 44° 7' 56'' North   (decimal: 44.1322222)
• Longitude: 77° 18' 19'' West   (decimal: -77.3052777)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 87 meters
• Location: Prince Edward
• Atlas of Canada Locator Map: Grave Island
• GPS Coordinate Locator Map: Grave Island Lat/Long