Rideau King Rock is a Shoal located in Lanark, Ontario.

• Latitude: 44° 49' 28'' North   (decimal: 44.8244444)
• Longitude: 76° 11' 12'' West   (decimal: -76.1866666)
• Topography Feature Category: Shoal
• Geographical Feature: Rock
• Canadian Province/Territory: Ontario
• Location: Lanark
• Atlas of Canada Locator Map: Rideau King Rock
• GPS Coordinate Locator Map: Rideau King Rock Lat/Long