Lac Mach is a Lake located in Lac-Pythonga; La Vallée-de-la-Gatineau, Quebec and has an elevation of 374 meters.

• Latitude: 47° 12' 4'' North   (decimal: 47.2011111)
• Longitude: 76° 44' 49'' West   (decimal: -76.7469444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 374 meters
• Location: Lac-Pythonga; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: Lac Mach
• GPS Coordinate Locator Map: Lac Mach Lat/Long