Lac Lacoste is a Lake located in Rivière-Rouge; Antoine-Labelle, Quebec and has an elevation of 283 meters.

• Latitude: 46° 20' 11'' North   (decimal: 46.3364354)
• Longitude: 74° 51' 40'' West   (decimal: -74.8610195)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 283 meters
• Location: Rivière-Rouge; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Lacoste
• GPS Coordinate Locator Map: Lac Lacoste Lat/Long