Lac des Marais is a Lake located in Mont-Carmel; Kamouraska, Quebec and has an elevation of 398 meters.

• Latitude: 47° 19' 33'' North   (decimal: 47.3258547)
• Longitude: 69° 44' 48'' West   (decimal: -69.7467214)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 398 meters
• Location: Mont-Carmel; Kamouraska
• Atlas of Canada Locator Map: Lac des Marais
• GPS Coordinate Locator Map: Lac des Marais Lat/Long