Lac Gaston is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 581 meters.

• Latitude: 48° 30' 25'' North   (decimal: 48.5069444)
• Longitude: 73° 24' 15'' West   (decimal: -73.4041667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 581 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Gaston
• GPS Coordinate Locator Map: Lac Gaston Lat/Long