Lac Long is a Lake located in Baie-James; Jamésie, Quebec.

• Latitude: 53° 54' 44'' North   (decimal: 53.9122222)
• Longitude: 70° 6' 12'' West   (decimal: -70.1033333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• GPS Coordinate Locator Map: Lac Long Lat/Long