Lac à Mathias is a Lake located in Nominingue; Antoine-Labelle, Quebec and has an elevation of 282 meters.

• Latitude: 46° 26' 8'' North   (decimal: 46.4355556)
• Longitude: 75° 2' 33'' West   (decimal: -75.0425)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 282 meters
• Location: Nominingue; Antoine-Labelle
• Atlas of Canada Locator Map: Lac à Mathias
• GPS Coordinate Locator Map: Lac à Mathias Lat/Long