- Location: Northern Canada, within the Northwest Territories.
- Part of: Mackenzie River Basin
- Size: Approximately 31,153 square kilometers (12,028 sq mi), making it the largest lake entirely within Canada.
- Depth: Maximum depth of 446 meters (1,463 feet)
- Shape: Irregular, with numerous bays, inlets, and islands.
- Major Tributaries: Dease River, Great Bear River, and Johnny Hoe River.
- Main Outlet: Great Bear River, which flows into the Mackenzie River.
- Significance: Important habitat for various fish species, including lake trout, whitefish, and inconnu. Also known for the presence of several islands, such as the Grizzly Bear Islands and Russell Island, which have significance for wildlife and cultural heritage.