Lac à Eustache is a Lake located in Lac-Walker; Sept-Rivières, Quebec and has an elevation of 427 meters.

• Latitude: 50° 9' 23'' North   (decimal: 50.1564293)
• Longitude: 67° 12' 43'' West   (decimal: -67.2118607)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 427 meters
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac à Eustache
• GPS Coordinate Locator Map: Lac à Eustache Lat/Long