Lac Atanache is a Lake located in Lac-Walker; Sept-Rivières, Quebec and has an elevation of 420 meters.

• Latitude: 50° 21' 37'' North   (decimal: 50.3602778)
• Longitude: 67° 6' 40'' West   (decimal: -67.1111111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 420 meters
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac Atanache
• GPS Coordinate Locator Map: Lac Atanache Lat/Long