Lac Mathieu is a Lake located in Notre-Dame-de-Lorette; Maria-Chapdelaine, Quebec and has an elevation of 190 meters.

• Latitude: 49° 7' 51'' North   (decimal: 49.1308333)
• Longitude: 72° 21' 36'' West   (decimal: -72.36)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 190 meters
• Location: Notre-Dame-de-Lorette; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Mathieu
• GPS Coordinate Locator Map: Lac Mathieu Lat/Long