Rock Island is a Island located in Muskoka, Ontario and has an elevation of 292 meters.

• Latitude: 45° 14' 54'' North   (decimal: 45.2483333)
• Longitude: 79° 29' 15'' West   (decimal: -79.4874999)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 292 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Rock Island
• GPS Coordinate Locator Map: Rock Island Lat/Long