Lac du Sourd is a Lake located in Saint-Ulric; Matane, Quebec.

• Latitude: 48° 44' 39'' North   (decimal: 48.7442093)
• Longitude: 67° 39' 19'' West   (decimal: -67.6552783)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Ulric; Matane
• Atlas of Canada Locator Map: Lac du Sourd
• GPS Coordinate Locator Map: Lac du Sourd Lat/Long