Roslyn River is a River located in Thunder Bay, Ontario and has an elevation of 428 meters.

• Latitude: 49° 21' 54'' North   (decimal: 49.3650000)
• Longitude: 87° 27' 54'' West   (decimal: -87.4650000)
• Topography Feature Category: River
• Geographical Feature: River
• Canadian Province/Territory: Ontario
• Elevation: 428 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Roslyn River
• GPS Coordinate Locator Map: Roslyn River Lat/Long