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Hornaday River
Hornaday River (variants: Big River, Homaday River, Hornaaa River; or Rivière La Roncière-le Noury) is a waterway located above the Arctic Circle on the mainland of Northern Canada.
The upper reach of a river first discovered in 1868 was named Rivière La Roncière-le Noury in honour of Admiral Baron Adalbert Camille Marie Clément de La Roncière-Le Noury, commander of the Mediterranean Squadron, and president of the Société de Géographie. The lower reach of a river discovered in 1899 was named Hornaday after American zoologist William Temple Hornaday. Decades later, the Roncière and the Hornaday were ascertained to be the same river.
The river originates (67°52′10″N 120°13′16″W / 67.86944°N 120.22111°W) in the western Kitikmeot Region, Nunavut, 20 kilometres (12 mi) south of Bluenose Lake (Takipaq). It initially flows west-southwest, passing into the Northwest Territories along the southern edge of the Melville Hills within the Settlement Region of the Inuvialuit, just south of the Tuktut Nogait National Park boundary. It then flows northwest through Tuktut Nogait, its canyons and waterfalls making it one of the main features of the park. The river empties into Amundsen Gulf's Darnley Bay, 14 kilometres (9 mi) east of the Inuit hamlet of Paulatuk.
The Hornaday is approximately 190 kilometres (120 mi) long. Its main tributary is the Little Hornaday River northwest of the park. First Creek, Second Creek, Aklak Creek, George Creek, and Rummy Creek drain the Hornaday. Rummy Lake (69°07′31″N 123°30′08″W / 69.12528°N 123.50222°W), Seven Islands Lake (69°17′02″N 123°00′16″W / 69.28389°N 123.00444°W), and Hornaday Lake are part of the river's system. Hornaday River runs parallel with the Horton River to its west, and the Brock River to its east.
Located at an elevation of 274 metres (899 ft) above sea level, La Roncière Falls (69°08′16″N 122°52′37″W / 69.13778°N 122.87694°W) is a 23-metre (75 ft) waterfall on the Hornaday, south of the main tributary. Its name was adopted by the Geographical Names Board of Canada in June 1952.
The area is part of the Arctic, Interior and Hudson Platforms. Deposit characteristics are coal seam.
The river's drainage basin includes the area between Great Bear Lake and the Arctic Ocean. Its middle course supports a wide channel for 65 kilometres (40 mi). The river's stretches include a broad bedrock valley, bedrock canyons, and a delta into the Arctic Ocean. Its tundra has a permafrost layer 2 metres (6 ft 7 in) below the surface which minimizes groundwater flow and storage, forcing rainstorm flow directly into the river.
Flora along the river is characterized by typical tundra vegetation such as sedge and lupine meadows, and some willow patches along the lower Hornaday. While a dense cover of spruce is found along the nearby Horton River, there are no spruce along the Hornaday.
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Hornaday River
Hornaday River (variants: Big River, Homaday River, Hornaaa River; or Rivière La Roncière-le Noury) is a waterway located above the Arctic Circle on the mainland of Northern Canada.
The upper reach of a river first discovered in 1868 was named Rivière La Roncière-le Noury in honour of Admiral Baron Adalbert Camille Marie Clément de La Roncière-Le Noury, commander of the Mediterranean Squadron, and president of the Société de Géographie. The lower reach of a river discovered in 1899 was named Hornaday after American zoologist William Temple Hornaday. Decades later, the Roncière and the Hornaday were ascertained to be the same river.
The river originates (67°52′10″N 120°13′16″W / 67.86944°N 120.22111°W) in the western Kitikmeot Region, Nunavut, 20 kilometres (12 mi) south of Bluenose Lake (Takipaq). It initially flows west-southwest, passing into the Northwest Territories along the southern edge of the Melville Hills within the Settlement Region of the Inuvialuit, just south of the Tuktut Nogait National Park boundary. It then flows northwest through Tuktut Nogait, its canyons and waterfalls making it one of the main features of the park. The river empties into Amundsen Gulf's Darnley Bay, 14 kilometres (9 mi) east of the Inuit hamlet of Paulatuk.
The Hornaday is approximately 190 kilometres (120 mi) long. Its main tributary is the Little Hornaday River northwest of the park. First Creek, Second Creek, Aklak Creek, George Creek, and Rummy Creek drain the Hornaday. Rummy Lake (69°07′31″N 123°30′08″W / 69.12528°N 123.50222°W), Seven Islands Lake (69°17′02″N 123°00′16″W / 69.28389°N 123.00444°W), and Hornaday Lake are part of the river's system. Hornaday River runs parallel with the Horton River to its west, and the Brock River to its east.
Located at an elevation of 274 metres (899 ft) above sea level, La Roncière Falls (69°08′16″N 122°52′37″W / 69.13778°N 122.87694°W) is a 23-metre (75 ft) waterfall on the Hornaday, south of the main tributary. Its name was adopted by the Geographical Names Board of Canada in June 1952.
The area is part of the Arctic, Interior and Hudson Platforms. Deposit characteristics are coal seam.
The river's drainage basin includes the area between Great Bear Lake and the Arctic Ocean. Its middle course supports a wide channel for 65 kilometres (40 mi). The river's stretches include a broad bedrock valley, bedrock canyons, and a delta into the Arctic Ocean. Its tundra has a permafrost layer 2 metres (6 ft 7 in) below the surface which minimizes groundwater flow and storage, forcing rainstorm flow directly into the river.
Flora along the river is characterized by typical tundra vegetation such as sedge and lupine meadows, and some willow patches along the lower Hornaday. While a dense cover of spruce is found along the nearby Horton River, there are no spruce along the Hornaday.