Trecastle is a Unincorporated area located in Wellington; Perth, Ontario and has an elevation of 407 meters.

• Latitude: 43° 46' 59'' North   (decimal: 43.7830555)
• Longitude: 80° 48' 21'' West   (decimal: -80.8058333)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Dispersed Rural Community
• Canadian Province/Territory: Ontario
• Elevation: 407 meters
• Location: Wellington; Perth
• Atlas of Canada Locator Map: Trecastle
• GPS Coordinate Locator Map: Trecastle Lat/Long