Lac Long is a Lake located in Sainte-Anne-de-Portneuf; La Haute-Côte-Nord, Quebec.

• Latitude: 48° 43' 50'' North   (decimal: 48.7305847)
• Longitude: 69° 15' 48'' West   (decimal: -69.2633862)
• Topography Feature Category: Lake
• Geographical Feature: Partie de lac
• Canadian Province/Territory: Quebec
• Location: Sainte-Anne-de-Portneuf; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Long
• GPS Coordinate Locator Map: Lac Long Lat/Long