Lac Gaston is a Lake located in Lac-Matawin; Matawinie, Quebec and has an elevation of 538 meters.

• Latitude: 47° 4' 15'' North   (decimal: 47.0708881)
• Longitude: 74° 26' 50'' West   (decimal: -74.4470988)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 538 meters
• Location: Lac-Matawin; Matawinie
• Atlas of Canada Locator Map: Lac Gaston
• GPS Coordinate Locator Map: Lac Gaston Lat/Long