Lac Didace is a Lake located in Lac-Nilgaut; Pontiac, Quebec and has an elevation of 241 meters.

• Latitude: 46° 10' 42'' North   (decimal: 46.1783333)
• Longitude: 76° 58' 3'' West   (decimal: -76.9675)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 241 meters
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac Didace
• GPS Coordinate Locator Map: Lac Didace Lat/Long