Lac Marais is a Lake located in Picard; Kamouraska, Quebec and has an elevation of 276 meters.

• Latitude: 47° 34' 42'' North   (decimal: 47.5783333)
• Longitude: 69° 31' 24'' West   (decimal: -69.5233332)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 276 meters
• Location: Picard; Kamouraska
• Atlas of Canada Locator Map: Lac Marais
• GPS Coordinate Locator Map: Lac Marais Lat/Long