Lac Tirtiluk is a Lake located in Baie-d'Hudson; Kativik, Quebec and has an elevation of 83 meters.

• Latitude: 62° 21' 11'' North   (decimal: 62.3531123)
• Longitude: 77° 54' 33'' West   (decimal: -77.9090539)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 83 meters
• Location: Baie-d'Hudson; Kativik
• Atlas of Canada Locator Map: Lac Tirtiluk
• GPS Coordinate Locator Map: Lac Tirtiluk Lat/Long