Lac Interroi is a Lake located in Lac-Pythonga; La Vallée-de-la-Gatineau, Quebec and has an elevation of 432 meters.

• Latitude: 46° 58' 27'' North   (decimal: 46.9741667)
• Longitude: 76° 21' 39'' West   (decimal: -76.3608333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 432 meters
• Location: Lac-Pythonga; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: Lac Interroi
• GPS Coordinate Locator Map: Lac Interroi Lat/Long