Hay River (Canada) border, the annual discharge is . Hay River (Canada) The Hay River (in South Slavey: "Kátå’odehche") is a large river in northern Alberta and southern Northwest Territories, Canada. It originates in the muskeg of north western Alberta, flows west to British Columbia, then curves northward and returns to Alberta, where it follows a north-northeast course towards the Northwest Territories. After passing over two main waterfalls, the Alexandra Falls and Louise Falls, it flows through the town of Hay River and discharges into the Great Slave Lake. From there, its waters are carried to the Arctic Ocean by the Mackenzie River.
Mackenzie River (Victoria) descends over its course. The river is crossed by the Henty Highway, south of Horsham. In the local indigenous language the river is named Bun-nah, meaning "tea-tree scrub"; and in the Jardwadjali language, Bunud, meaning "mallee tree, tea-tree scrub". Mackenzie River (Victoria) The Mackenzie River, an inland intermittent river of the Wimmera catchment, is located in the Grampians region of the Australian state of Victoria. Rising in the Grampians National Park, on the northern slopes of the Great Dividing Range, the Mackenzie River flows generally north by west and drains into the Wimmera River, southwest of . The Mackenzie River