Greenmantle River is a River located in Thunder Bay, Ontario and has an elevation of 334 meters.

• Latitude: 51° 21' 17'' North   (decimal: 51.3547222)
• Longitude: 89° 4' 8'' West   (decimal: -89.0688888)
• Topography Feature Category: River
• Geographical Feature: River
• Canadian Province/Territory: Ontario
• Elevation: 334 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Greenmantle River
• GPS Coordinate Locator Map: Greenmantle River Lat/Long