Lac à la Mélasse is a Lake located in La Martre; La Haute-Gaspésie, Quebec.

• Latitude: 49° 4' 8'' North   (decimal: 49.0689339)
• Longitude: 66° 7' 27'' West   (decimal: -66.1241155)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: La Martre; La Haute-Gaspésie
• Atlas of Canada Locator Map: Lac à la Mélasse
• GPS Coordinate Locator Map: Lac à la Mélasse Lat/Long