Lac de la Montagne is a Lake located in Lac-Nilgaut; Pontiac, Quebec.

• Latitude: 46° 57' 19'' North   (decimal: 46.9552778)
• Longitude: 77° 40' 20'' West   (decimal: -77.6722222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac de la Montagne
• GPS Coordinate Locator Map: Lac de la Montagne Lat/Long