Lyon Rocks is a Shoal located in Parry Sound, Ontario and has an elevation of 177 meters.

• Latitude: 45° 18' 44'' North   (decimal: 45.3122222)
• Longitude: 80° 15' 46'' West   (decimal: -80.2627777)
• Topography Feature Category: Shoal
• Geographical Feature: Rocks
• Canadian Province/Territory: Ontario
• Elevation: 177 meters
• Location: Parry Sound
• Atlas of Canada Locator Map: Lyon Rocks
• GPS Coordinate Locator Map: Lyon Rocks Lat/Long