Lac Thomas is a Lake located in Lac-Jacques-Cartier; La Côte-de-Beaupré, Quebec.

• Latitude: 47° 21' 59'' North   (decimal: 47.3664095)
• Longitude: 70° 51' 46'' West   (decimal: -70.8628682)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Jacques-Cartier; La Côte-de-Beaupré
• Atlas of Canada Locator Map: Lac Thomas
• GPS Coordinate Locator Map: Lac Thomas Lat/Long