Union Hall is a Unincorporated area located in Lanark, Ontario and has an elevation of 170 meters.

• Latitude: 45° 9' 38'' North   (decimal: 45.1605555)
• Longitude: 76° 17' 33'' West   (decimal: -76.2924999)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Dispersed Rural Community
• Canadian Province/Territory: Ontario
• Elevation: 170 meters
• Location: Lanark
• Atlas of Canada Locator Map: Union Hall
• GPS Coordinate Locator Map: Union Hall Lat/Long