Lac de l'Éprouvette is a Lake located in Lac-Nilgaut; Pontiac, Quebec.

• Latitude: 46° 54' 5'' North   (decimal: 46.9014488)
• Longitude: 77° 12' 19'' West   (decimal: -77.2052804)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac de l'Éprouvette
• GPS Coordinate Locator Map: Lac de l'Éprouvette Lat/Long