Lac Fronsac is a Lake located in Rivière-Saint-Jean; La Côte-de-Gaspé, Quebec and has an elevation of 174 meters.

• Latitude: 48° 47' 53'' North   (decimal: 48.7980555)
• Longitude: 64° 42' 49'' West   (decimal: -64.7136110)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 174 meters
• Location: Rivière-Saint-Jean; La Côte-de-Gaspé
• Atlas of Canada Locator Map: Lac Fronsac
• GPS Coordinate Locator Map: Lac Fronsac Lat/Long