Grant Island is a Island located in Muskoka, Ontario and has an elevation of 241 meters.

• Latitude: 44° 50' 00'' North   (decimal: 44.8333333)
• Longitude: 79° 16' 49'' West   (decimal: -79.2802777)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 241 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Grant Island
• GPS Coordinate Locator Map: Grant Island Lat/Long