Lac Estornel is a Lake located in Lac-de-la-Maison-de-Pierre; Antoine-Labelle, Quebec.

• Latitude: 46° 47' 1'' North   (decimal: 46.7836111)
• Longitude: 74° 36' 54'' West   (decimal: -74.615)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-de-la-Maison-de-Pierre; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Estornel
• GPS Coordinate Locator Map: Lac Estornel Lat/Long