Mackenzie River
At , the Mackenzie River drainage basin encompasses nearly 20 percent of Canada. About , or 54 percent of the basin, lies above Great Slave Lake. Permafrost underlies about three-quarters of the watershed, reaching up to deep in the Mackenzie Delta. As a whole, the Mackenzie basin receives only meager to moderate rainfall, averaging over the entire basin, though mountain areas experience much higher precipitation, and areas near and north of the Arctic Circle receive much lower precipitation.
Partridge Lake (BC-Yukon)
Partridge Lake is a lake in the Yukon and British Columbia, Canada that is part of the Bering Sea drainage basin. The primary inflow, at the south, and outflow, at the north, is the Partridge River, which flows via Bennett Lake, the Nares River, Tagish Lake, the Tagish River and the Yukon River to the Bering Sea. A secondary inflow, at the southwest, is Jones Creek.