Lac Diane is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 510 meters.

• Latitude: 48° 40' 57'' North   (decimal: 48.6825)
• Longitude: 73° 10' 7'' West   (decimal: -73.1686111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 510 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Diane
• GPS Coordinate Locator Map: Lac Diane Lat/Long