Lac Knife is a Lake located in Rivière-Mouchalagane; Caniapiscau, Quebec and has an elevation of 675 meters.

• Latitude: 52° 33' 32'' North   (decimal: 52.5589623)
• Longitude: 67° 10' 33'' West   (decimal: -67.1757634)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 675 meters
• Location: Rivière-Mouchalagane; Caniapiscau
• Atlas of Canada Locator Map: Lac Knife
• GPS Coordinate Locator Map: Lac Knife Lat/Long