Lac Douglas is a Lake located in Lac-Nilgaut; Pontiac, Quebec and has an elevation of 358 meters.

• Latitude: 46° 26' 29'' North   (decimal: 46.4414481)
• Longitude: 77° 34' 48'' West   (decimal: -77.5800229)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 358 meters
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac Douglas
• GPS Coordinate Locator Map: Lac Douglas Lat/Long