Étang Gilday is a Lake located in Lac-Brome; Brome-Missisquoi, Quebec and has an elevation of 315 meters.

• Latitude: 45° 11' 00'' North   (decimal: 45.1833333)
• Longitude: 72° 30' 2'' West   (decimal: -72.5005555)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 315 meters
• Location: Lac-Brome; Brome-Missisquoi
• Atlas of Canada Locator Map: Étang Gilday
• GPS Coordinate Locator Map: Étang Gilday Lat/Long