Lac Isurtuq is a Lake located in Baie-d'Hudson; Kativik, Quebec.

• Latitude: 61° 47' 21'' North   (decimal: 61.7892008)
• Longitude: 77° 57' 38'' West   (decimal: -77.9604689)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-d'Hudson; Kativik
• Atlas of Canada Locator Map: Lac Isurtuq
• GPS Coordinate Locator Map: Lac Isurtuq Lat/Long