Lac Lacoste is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec and has an elevation of 546 meters.

• Latitude: 51° 11' 17'' North   (decimal: 51.1880556)
• Longitude: 68° 45' 33'' West   (decimal: -68.7591667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 546 meters
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Lacoste
• GPS Coordinate Locator Map: Lac Lacoste Lat/Long