Big Island is a Island located in Rivière-Koksoak; Kativik, Quebec.

• Latitude: 58° 19' 27'' North   (decimal: 58.3241667)
• Longitude: 67° 35' 52'' West   (decimal: -67.5977778)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• GPS Coordinate Locator Map: Big Island Lat/Long