Lac de la Belle Montagne is a Lake located in Saint-Jean-de-Matha; Matawinie, Quebec.

• Latitude: 46° 14' 32'' North   (decimal: 46.2422592)
• Longitude: 73° 35' 56'' West   (decimal: -73.5990265)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Jean-de-Matha; Matawinie
• Atlas of Canada Locator Map: Lac de la Belle Montagne
• GPS Coordinate Locator Map: Lac de la Belle Montagne Lat/Long