Three Mountain Portage is a Road feature located in Thunder Bay, Ontario and has an elevation of 284 meters.

• Latitude: 49° 27' 27'' North   (decimal: 49.4575000)
• Longitude: 88° 30' 33'' West   (decimal: -88.5091666)
• Topography Feature Category: Road feature
• Geographical Feature: Portage
• Canadian Province/Territory: Ontario
• Elevation: 284 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Three Mountain Portage
• GPS Coordinate Locator Map: Three Mountain Portage Lat/Long