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.
List of canals of Canada
Canada has a number of canals, including some ship canals. Most are located in eastern Canada, namely in Ontario, Quebec, and three in Nova Scotia. Seton Canal is located in British Columbia and is mostly a diversion channel.