Lac Échalas is a Lake located in Lac-Nilgaut; Pontiac, Quebec and has an elevation of 384 meters.

• Latitude: 47° 11' 32'' North   (decimal: 47.1922222)
• Longitude: 77° 26' 14'' West   (decimal: -77.4372222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 384 meters
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac Échalas
• GPS Coordinate Locator Map: Lac Échalas Lat/Long