Lac Longley is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 262 meters.

• Latitude: 49° 58' 24'' North   (decimal: 49.9733333)
• Longitude: 78° 18' 7'' West   (decimal: -78.3019443)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 262 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Longley
• GPS Coordinate Locator Map: Lac Longley Lat/Long