Troisième lac du Séminaire is a Lake located in Baie-Sainte-Catherine; Charlevoix-Est, Quebec.

• Latitude: 48° 0' 20'' North   (decimal: 48.0055759)
• Longitude: 69° 48' 58'' West   (decimal: -69.8161675)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-Sainte-Catherine; Charlevoix-Est
• GPS Coordinate Locator Map: Troisième lac du Séminaire Lat/Long