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Nahanni Mitchell
Nahanni National Park Reserve in the Dehcho Region of the Northwest Territories, Canada, approximately west of Yellowknife, protects a portion of the Mackenzie Mountains Natural Region. The centrepiece of the park is the South Nahanni River (''Naha Dehé''). Four noteworthy canyons reaching in depth,Parks Canada. 2007. South Nahanni River Touring Guide. called First, Second, Third and Fourth Canyon, line its whitewater river. The name Nahanni comes from the indigenous Dene language name for the area; Nahʔa Dehé, which means "river of the land of the Nahʔa people".Parks Canada. 2002. Nahanni National Park Reserve Natural and Cultural Guide to Nahʔa Dehé The park was among the world's first four natural heritage locations to be inscribed as World Heritage Sites by UNESCO in 1978 because of its picturesque wild rivers, canyons, and waterfalls. The park is also said to be haunted or cursed, following the mysterious disappearances and deaths of several gold prospectors over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inland Sea (geology)
An inland sea (also known as an epeiric sea or an epicontinental sea) is a continental body of water which is very large and is either completely surrounded by dry land or connected to an ocean by a river, strait, or "arm of the sea". An inland sea will generally have higher salinity than a freshwater lake, but usually lower salinity than the open ocean. Definition What constitutes an "inland sea" is complex and somewhat necessarily vague. The United States Hydrographic Office defined it as "a body of water nearly or completely surrounded by land, especially if very large or composed of salt water". Geologic engineers Heinrich Ries and Thomas L. Watson say an inland sea is merely a very large lake. Rydén, Migula, and Andersson and Deborah Sandler of the Environmental Law Institute add that an inland sea is "more or less" cut off from the ocean. It may be semi-enclosed, or connected to the ocean by a strait or "arm of the sea". An inland sea is distinguishable from a bay in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirque Of The Unclimbables
Cirque of the Unclimbables, located inside the Nahanni National Park Reserve, in the Northwest Territories The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. ..., Canada, approximately west of Yellowknife, is a cluster of peaks and walls in the Mackenzie Mountains Natural Region. Description According to the tourism promotion authority of the government of Northwest Territories: History In 1955, the mountaineer Arnold Wexler came across this series of remote cliffs in the Logan Mountains, now part of Nahanni National Park Reserve. Frustrated by their sheer granite walls, he named the jagged monsters the Cirque of the Unclimbables. Access Access to the Cirque and the Ragged Range is by charter aircraft. Lotus Flower Tower and other climbs The Cirque's most famous peak is the Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotus Flower Tower
The Lotus Flower Tower is a peak in the Cirque of the Unclimbables, Northwest Territories, Canada. It is located on the ridge one km southwest of Mount Sir James MacBrien, and though it is not prominent in relation to surrounding peaks, it is noted for its sheer rock walls which are home to classic alpine rock climbs. The first ascent was made by William J. Buckingham William is a masculine given name of Norman French origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conques ... and party on July 16, 1960, via a traverse from "Tathagata Tower" along the ridge which connects Lotus Flower Tower to Mount Sir James MacBrien. The peak's second ascent and first ascent of the sheer 2200 foot southeast face was made in 1968 by Harthon "Sandy" Bill, Tom Frost, and James McCarthy. The first free ascent of the McCarthy-Frost-Bill route was completed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Sir James MacBrien
Mount Sir James MacBrien is a peak in the Fort Smith Region of Canada's Northwest Territories The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. .... The second highest peak in the Mackenzie Mountains, it is named after Major-General Sir James Howden MacBrien who was the head of the Canadian Militia in the mid-1920s. References Sir James MacBrien Nahanni National Park Reserve {{NorthwestTerritories-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Nirvana
Mount Nirvana, at is the unofficial name of the highest mountain in the Northwest Territories, Canada. Currently the Canadian government is working to officially recognize the name ''Thunder Mountain'', reflecting the local Dehcho First Nation name for the mountain. Today, the name ''Mt. Nirvana'' is commonly depicted in alpine literature. Mount Nirvana is part of Nahanni National Park Reserve, the largest national park in the Northwest Territories. History Part of the Mackenzie Mountains, it was first climbed by Bill Buckingham and Lew Surdam in July 1965.Principal heights by range or region from Statistics Canada Buckingham gave the mountain the moniker of "Mount Nirvana" at that time. See ...
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Virginia Falls (Northwest Territories)
Virginia Falls ( den, script=Latn, Nailicho) is a waterfall in Nahanni National Park Reserve, Northwest Territories, Canada. It is located on the South Nahanni River, at an elevation of . It is located from the Yukon border. It has a total drop of , making it about twice the height of Niagara Falls. It consists of a single drop with an average width of . The rock in the centre of the falls is called ''Mason's Rock'', named after Bill Mason, a Canadian canoeist, author, and filmmaker. The Virginia Falls Water Aerodrome Virginia Falls Water Aerodrome is located on the South Nahanni River approximately upstream from Virginia Falls, Northwest Territories The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly '' ... is close by. Gallery File:Nahanni - VirginiaFalls.jpg, View of the falls from below. File:Virginia Falls on the South Nahanni River.jpg, View of the falls from above. File:Mason's Rock.jpg, Mason's Rock See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entrenched River
An entrenched river, or entrenched stream is a river or stream that flows in a narrow trench or valley cut into a plain or relatively level upland. Because of lateral erosion streams flowing over gentle slopes over a time develops meandering (snake like pattern) course. Meanders form where gradient is very gentle, for example in floodplain and delta. Meandering is the feature of the middle and final course of the river. But very deep and wide meanders can also be found cutting hard rocks. Such meanders are called incised or entrenched meanders. The exception is that entrenched meanders are formed during the upliftment of land where river is young. They widen and deepen over time and can be found as deep gorges or canyons in hard rock.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds., 2005. ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. Licker, M.D., 2003. ''McGraw-Hill Dictionary of Environmental Science.'' McGraw-Hill Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antecedent River
An antecedent stream is a stream that maintains its original course and pattern despite the changes in underlying rock topography. A stream with a dendritic drainage pattern, for example, can be subject to slow tectonic uplift. However, as the uplift occurs, the stream erodes through the rising ridge to form a steep-walled gorge. The stream thus keeps its dendritic pattern even though it flows over a landscape that will normally produce a trellis drainage pattern.Grotzinger, J. & Jordan, T.H. 2006. Understanding Earth, 5th ed., Freeman, New York A superimposed stream is a stream that forms over horizontal beds that overlie folded and faulted rock with varying resistance. Having cut down through the horizontal beds, the stream retains its course and pattern as it proceeds to erode the underlying rocks despite their different character. The stream erodes a gorge in the resistant bed and continues its flow as before. Examples * Many Himalayan rivers are good examples of antecedent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liard River
The Liard River of the North American boreal forest flows through Yukon, British Columbia and the Northwest Territories, Canada. Rising in the Saint Cyr Range of the Pelly Mountains in southeastern Yukon, it flows southeast through British Columbia, marking the northern end of the Rocky Mountains and then curving northeast back into Yukon and Northwest Territories, draining into the Mackenzie River at Fort Simpson, Northwest Territories. The river drains approximately of boreal forest and muskeg. Geography The river habitats are a subsection of the Lower Mackenzie Freshwater Ecoregion. The area around the river in Yukon is called the ''Liard River Valley'', and the Alaska Highway follows the river for part of its route. This surrounding area is also referred to as the ''Liard Plain'', and is a physiographic section of the larger Yukon–Tanana Uplands province, which in turn is part of the larger Intermontane Plateaus physiographic division. The Liard River is a crossi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moose Ponds
The Moose Ponds are an expansion of the South Nahanni River just below its headwaters and are the starting point for 50 km of virtually continuous Class II - Class IV whitewater in Canada. This stretch of river is known locally as the ''Rock Gardens''. The ponds are mostly within the Northwest Territories The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. ..., however a small portion of the largest and westernmost of the ponds does enter the Yukon. References Lakes of the Northwest Territories Lakes of Yukon Nahanni National Park Reserve {{Yukon-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin Glaciation
The Wisconsin Glacial Episode, also called the Wisconsin glaciation, was the most recent glacial period of the North American ice sheet complex. This advance included the Cordilleran Ice Sheet, which nucleated in the northern North American Cordillera; the Innuitian ice sheet, which extended across the Canadian Arctic Archipelago; the Greenland ice sheet; and the massive Laurentide Ice Sheet, which covered the high latitudes of central and eastern North America. This advance was synchronous with global glaciation during the last glacial period, including the North American alpine glacier advance, known as the Pinedale glaciation. The Wisconsin glaciation extended from approximately 75,000 to 11,000 years ago, between the Sangamonian Stage and the current interglacial, the Holocene. The maximum ice extent occurred approximately 25,000–21,000 years ago during the last glacial maximum, also known as the ''Late Wisconsin'' in North America. This glaciation radically altered the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
