Thornhill is a Unincorporated area located in Range 5 Coast Land District, British Columbia and has an elevation of 77 meters.

• Latitude: 54° 31' North   (decimal: 54.5167000)
• Longitude: 128° 32' West   (decimal: -128.5332999)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Community
• Canadian Province/Territory: British Columbia
• Elevation: 77 meters
• Location: Range 5 Coast Land District
• Atlas of Canada Locator Map: Thornhill
• GPS Coordinate Locator Map: Thornhill Lat/Long