The Mackenzie River in Canada's Northwest Territories is a historic waterway, used for centuries by Indigenous peoples, specifically the Dene, as a travel and hunting corridor. Also known as the Deh Cho, it is part of a larger watershed that includes the Slave, Athabasca, and Peace rivers extending from northern Alberta. In the 1780s, Peter Pond, a trader with the North West Company became the first known European to visit this watershed and begin viable trade with the Athapascan-speaking Dene of these rivers. The Mackenzie River itself, the great waterway extending to the Arctic Ocean, was first put on European maps by Alexander Mackenzie in 1789, the Scottish trader who explored the river. The watershed thus became a vital part of the North American fur trade, and before the advent of th