Lac Piau is a Lake located in Rivière-Kipawa; Témiscamingue, Quebec and has an elevation of 306 meters.

• Latitude: 46° 21' 36'' North   (decimal: 46.36)
• Longitude: 78° 23' 12'' West   (decimal: -78.3866667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 306 meters
• Location: Rivière-Kipawa; Témiscamingue
• Atlas of Canada Locator Map: Lac Piau
• GPS Coordinate Locator Map: Lac Piau Lat/Long