Lac Saint-Martin is a Lake located in Rivière-Koksoak; Kativik, Quebec and has an elevation of 456 meters.

• Latitude: 55° 12' 1'' North   (decimal: 55.2003812)
• Longitude: 67° 6' 41'' West   (decimal: -67.1115034)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 456 meters
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Saint-Martin
• GPS Coordinate Locator Map: Lac Saint-Martin Lat/Long