Lac Monsan is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 319 meters.

• Latitude: 50° 14' 17'' North   (decimal: 50.2380556)
• Longitude: 75° 51' 19'' West   (decimal: -75.8552778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 319 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Monsan
• GPS Coordinate Locator Map: Lac Monsan Lat/Long