Lac Nadeau is a Lake located in Saint-Léon-de-Standon; Bellechasse, Quebec and has an elevation of 454 meters.

• Latitude: 46° 25' 32'' North   (decimal: 46.4255555)
• Longitude: 70° 35' 12'' West   (decimal: -70.5866666)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 454 meters
• Location: Saint-Léon-de-Standon; Bellechasse
• Atlas of Canada Locator Map: Lac Nadeau
• GPS Coordinate Locator Map: Lac Nadeau Lat/Long