Lac Gerta is a Lake located in Otter Lake; Pontiac, Quebec and has an elevation of 270 meters.

• Latitude: 45° 53' 34'' North   (decimal: 45.8927778)
• Longitude: 76° 27' 48'' West   (decimal: -76.4633333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 270 meters
• Location: Otter Lake; Pontiac
• Atlas of Canada Locator Map: Lac Gerta
• GPS Coordinate Locator Map: Lac Gerta Lat/Long