Althorpe is a Unincorporated area located in Lanark, Ontario and has an elevation of 186 meters.

• Latitude: 44° 45' 27'' North   (decimal: 44.7574999)
• Longitude: 76° 28' 31'' West   (decimal: -76.4752777)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Dispersed Rural Community
• Canadian Province/Territory: Ontario
• Elevation: 186 meters
• Location: Lanark
• Atlas of Canada Locator Map: Althorpe
• GPS Coordinate Locator Map: Althorpe Lat/Long