Turnback Canyon is a Valley located in Cassiar Land District, British Columbia and has an elevation of 346 meters.

• Latitude: 59° 47' North   (decimal: 59.7833000)
• Longitude: 137° 55' West   (decimal: -137.9166999)
• Topography Feature Category: Valley
• Geographical Feature: Canyon
• Canadian Province/Territory: British Columbia
• Elevation: 346 meters
• Location: Cassiar Land District
• Atlas of Canada Locator Map: Turnback Canyon
• GPS Coordinate Locator Map: Turnback Canyon Lat/Long