Lac Brock is a Lake located in Lac-Nilgaut; Pontiac, Quebec and has an elevation of 219 meters.

• Latitude: 46° 16' 33'' North   (decimal: 46.2758333)
• Longitude: 76° 20' 40'' West   (decimal: -76.3444444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 219 meters
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac Brock
• GPS Coordinate Locator Map: Lac Brock Lat/Long