Lac Martin is a Lake located in Rivière-à-Pierre; Portneuf, Quebec and has an elevation of 326 meters.

• Latitude: 46° 59' 14'' North   (decimal: 46.9872222)
• Longitude: 72° 6' 30'' West   (decimal: -72.1083333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 326 meters
• Location: Rivière-à-Pierre; Portneuf
• Atlas of Canada Locator Map: Lac Martin
• GPS Coordinate Locator Map: Lac Martin Lat/Long