Upper Summit Lake (British Columbia) River, Great Slave Lake and the Mackenzie River into the Beaufort Sea portion of the Arctic Ocean. Upper Summit Lake (British Columbia) Upper Summit Lake is a lake in Regional District of Fraser-Fort George, in the Central Interior of British Columbia, Canada, about north of the city of Prince George and south of the community of Bear Lake. It lies just west of Highway 97 (John Hart Highway). Upper Summit Lake is about long and wide, and lies at an elevation of . There are no inflows, and an unnamed creek flows from the southern tip of the lake to
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