Île Oster is a Island located in Duhamel-Ouest; Témiscamingue, Quebec and has an elevation of 166 meters.

• Latitude: 47° 25' 42'' North   (decimal: 47.4283333)
• Longitude: 79° 32' 32'' West   (decimal: -79.5422222)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Elevation: 166 meters
• Location: Duhamel-Ouest; Témiscamingue
• Atlas of Canada Locator Map: Île Oster
• GPS Coordinate Locator Map: Île Oster Lat/Long