The Mackenzie River is the longest river in Canada, stretching approximately 1,738 kilometers (1,080 miles). It flows through the Northwest Territories, starting from the Great Slave Lake and emptying into the Arctic Ocean. The river is an essential waterway for transportation and supports various ecosystems along its banks. The river's basin is home to diverse wildlife, including fish, birds, and mammals. The Mackenzie River Delta is particularly significant, as it provides critical habitat for migratory birds and other species. The river also plays a vital role in the culture and economy of the Indigenous peoples in the region, such as the Dene and Inuit.