Lac Lantagnac is a Lake located in Caniapiscau; Caniapiscau, Quebec and has an elevation of 548 meters.

• Latitude: 54° 20' 12'' North   (decimal: 54.3366667)
• Longitude: 69° 20' 25'' West   (decimal: -69.3402778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 548 meters
• Location: Caniapiscau; Caniapiscau
• Atlas of Canada Locator Map: Lac Lantagnac
• GPS Coordinate Locator Map: Lac Lantagnac Lat/Long