Lac Harnais is a Lake located in Rivière-Kipawa; Témiscamingue, Quebec and has an elevation of 364 meters.

• Latitude: 46° 21' 51'' North   (decimal: 46.3641667)
• Longitude: 78° 35' 5'' West   (decimal: -78.5847222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 364 meters
• Location: Rivière-Kipawa; Témiscamingue
• Atlas of Canada Locator Map: Lac Harnais
• GPS Coordinate Locator Map: Lac Harnais Lat/Long