Saint-Marc-du-Lac-Long is a Village located in Saint-Marc-du-Lac-Long; Témiscouata, Quebec.

• Latitude: 47° 23' North   (decimal: 47.3833333)
• Longitude: 68° 54' West   (decimal: -68.8999999)
• Topography Feature Category: Village
• Geographical Feature: Municipalité de paroisse
• Canadian Province/Territory: Quebec
• Location: Saint-Marc-du-Lac-Long; Témiscouata
• Atlas of Canada Locator Map: Saint-Marc-du-Lac-Long
• GPS Coordinate Locator Map: Saint-Marc-du-Lac-Long Lat/Long