Rocher à Gillis is a Island located in Clarendon; Pontiac, Quebec and has an elevation of 77 meters.

• Latitude: 45° 31' 44'' North   (decimal: 45.5288889)
• Longitude: 76° 32' 54'' West   (decimal: -76.5483333)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Elevation: 77 meters
• Location: Clarendon; Pontiac
• Atlas of Canada Locator Map: Rocher à Gillis
• GPS Coordinate Locator Map: Rocher à Gillis Lat/Long