Lac Sinclair is a Lake located in La Pêche; Les Collines-de-l'Outaouais, Quebec and has an elevation of 233 meters.

• Latitude: 45° 46' 53'' North   (decimal: 45.7813889)
• Longitude: 76° 9' 9'' West   (decimal: -76.1525)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 233 meters
• Location: La Pêche; Les Collines-de-l'Outaouais
• Atlas of Canada Locator Map: Lac Sinclair
• GPS Coordinate Locator Map: Lac Sinclair Lat/Long