Lac Mathurin is a Lake located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 50° 57' 32'' North   (decimal: 50.9588889)
• Longitude: 67° 28' 6'' West   (decimal: -67.4683332)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac Mathurin
• GPS Coordinate Locator Map: Lac Mathurin Lat/Long