Mackenzie River east into the Churchill River. The eastern portion of the Mackenzie basin is dominated by vast reaches of lake-studded boreal forest and includes many of the largest lakes in North America. By both volume and surface area, Great Bear Lake is the biggest in the watershed and third largest on the continent, with a surface area of and a volume of . Great Slave Lake is slightly smaller, with an area of and containing of water, although it is significantly deeper than Great Bear. The third major lake, Athabasca, is less than a third that size with an area of
Albreda Lake shore of the lake. Albreda Lake Albreda Lake is a lake in Thompson-Nicola Regional District in the Interior region of British Columbia, Canada. It is in the Pacific Ocean drainage basin. The primary inflow, at the northeast, and outflow, at the southeast, is the Albreda River, which flows via the North Thompson River, the Thompson River and the Fraser River to the Pacific Ocean. The locality of Albreda is to the north, and both British Columbia Highway 5 and the Canadian National Railway transcontinental main line (used by freight traffic and the Via Rail "Canadian" train) pass by to the