Troisième lac Gury is a Lake located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 50° 32' 24'' North   (decimal: 50.54)
• Longitude: 67° 32' 29'' West   (decimal: -67.5413889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Troisième lac Gury
• GPS Coordinate Locator Map: Troisième lac Gury Lat/Long