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Mount Churchill
Mount Churchill is a volcano in the Saint Elias Mountains and the Wrangell Volcanic Field of eastern Alaska. Churchill and its higher neighbor Mount Bona about to the southwest are both large ice-covered stratovolcanoes, with Churchill being the fourth highest volcano in the United States and the seventh highest in North America. Volcanic eruptions Mount Churchill is most noteworthy as the source of the White River Ash, deposited during two of the largest volcanic eruptions in North America during the past two millennia. This twin-lobed tephra deposit covers more than of eastern Alaska and northwestern Canada, with the northern lobe deposited 1900 years ago and extending over and the larger eastern lobe about 1,250 years ago and stretching over . The total volume of the ash exceeds , or roughly 50 times the volume of the 1980 eruption of Mount St. Helens, and ash layers up to thick can be seen just below the surface in many roadcuts along the Alaska Highway. The extensive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klutlan Glacier
Klutlan Glacier is a long glacier in the U.S. state of Alaska. It is located southwest of Mount Nazirean and flows east across the border with Canada, then north to form the headwaters of the Klutlan River. Its native name was reported in 1891 by C. W. Hayes of the United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, .... See also * List of glaciers References Glaciers of Alaska Glaciers of Copper River Census Area, Alaska Glaciers of Unorganized Borough, Alaska Glaciers of Yukon {{CopperRiverAK-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yukon River
The Yukon River ( Gwich'in: ''Ųųg Han'' or ''Yuk Han'', Yup'ik: ''Kuigpak'', Inupiaq: ''Kuukpak'', Deg Xinag: ''Yeqin'', Hän: ''Tth'echù'' or ''Chuu k'onn'', Southern Tutchone: Chu Nìikwän, russian: Юкон, Yukon) is a major watercourse of northwestern North America. From its source in British Columbia, Canada, it flows through Canada's territory of Yukon (itself named after the river). The lower half of the river continues westwards through the U.S. state of Alaska. The river is long and empties into the Bering Sea at the Yukon–Kuskokwim Delta. The average flow is . The total drainage area is , of which lies in Canada. The total area is more than 25% larger than Texas or Alberta. The longest river in Alaska and Yukon, it was one of the principal means of transportation during the 1896–1903 Klondike Gold Rush. A portion of the river in Yukon—"The Thirty Mile" section, from Lake Laberge to the Teslin River—is a national heritage river and a unit of Klondike ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USGS
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredth an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge University Press
Cambridge University Press is the university press of the University of Cambridge. Granted letters patent by King Henry VIII in 1534, it is the oldest university press in the world. It is also the King's Printer. Cambridge University Press is a department of the University of Cambridge and is both an academic and educational publisher. It became part of Cambridge University Press & Assessment, following a merger with Cambridge Assessment in 2021. With a global sales presence, publishing hubs, and offices in more than 40 countries, it publishes over 50,000 titles by authors from over 100 countries. Its publishing includes more than 380 academic journals, monographs, reference works, school and university textbooks, and English language teaching and learning publications. It also publishes Bibles, runs a bookshop in Cambridge, sells through Amazon, and has a conference venues business in Cambridge at the Pitt Building and the Sir Geoffrey Cass Sports and Social Centre. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bush Plane
A bush airplane is a general aviation aircraft used to provide both scheduled and unscheduled passenger and flight services to remote, undeveloped areas, such as the Canadian north or bush, Alaskan tundra, the African bush, or savanna, Amazon rainforest or the Australian Outback. They are used where ground transportation infrastructure is inadequate or does not exist. Common traits Since a bush plane is defined by how it is used, a wide variety of different aircraft with different configurations have been used over the years as such. However, experience has shown certain traits to be desirable, and so they appear frequently, especially on aircraft specifically designed as bush planes. None of these traits are mandatory - merely they are commonly seen features of bush planes. * The undercarriage is designed to be fitted with floats, skis or wheel/skis to permit operation from water or snow—primarily for Canadian, Alaskan and Russian use. * High wings ease loading and unloa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aello Peak
Aello Peak is the highest peak of a mountain group called The Twaharpies, just west of Mount Bona in the Saint Elias Mountains of Alaska. While not highly significant in terms of prominence or isolation (it is just west of the summit of Mount Bona), it has a tremendous south face. From the summit, this face drops in just over , and in less than . In terms of vertical relief and steepness In mathematics, the slope or gradient of a line is a number that describes both the ''direction'' and the ''steepness'' of the line. Slope is often denoted by the letter ''m''; there is no clear answer to the question why the letter ''m'' is use ..., this is one of the major faces in North America. The Twaharpies also include two other named summits, Ocypete Peak and Celeno Peak, to the southwest of Aello Peak. Other summits of the Mount Bona massif include University Peak, also a peak with huge, steep relief, and Mount Churchill, a higher but much gentler peak. References American A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Peak (Alaska)
University Peak is a high peak in the Saint Elias Mountains of Alaska. It is one of the twenty highest peaks in Alask and one of the fifty highest peaks in the United States It can be considered a southern outlier of the large massif of . However, it is a much steeper peak than Bona, and presents significant climbing challenges of its own. The peak was named by during the first ascen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massif
In geology, a massif ( or ) is a section of a planet's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole. The term also refers to a group of mountains formed by such a structure. In mountaineering and climbing literature, a massif is frequently used to denote the main mass of an individual mountain. The massif is a smaller structural unit of the crust than a tectonic plate, and is considered the fourth-largest driving force in geomorphology. The word is taken from French (in which the word also means "massive"), where it is used to refer a large mountain mass or compact group of connected mountains forming an independent portion of a range. One of the most notable European examples of a massif is the Massif Central of the Auvergne region of France. The Face on Mars is an example of an extraterrestrial massif. Massifs may also form underwater, as with the Atlanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Pass
A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both human and animal migration throughout history. At lower elevations it may be called a hill pass. A mountain pass is typically formed between two volcanic peaks or created by erosion from water or wind. Overview Mountain passes make use of a gap, saddle, col or notch. A topographic saddle is analogous to the mathematical concept of a saddle surface, with a saddle point marking the highest point between two valleys and the lowest point along a ridge. On a topographic map, passes are characterized by contour lines with an hourglass shape, which indicates a low spot between two higher points. In the high mountains, a difference of between the summit and the mountain is defined as a mountain pass. Passes are often found just above the source of a river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topographic Prominence
In topography, prominence (also referred to as autonomous height, relative height, and shoulder drop in US English, and drop or relative height in British English) measures the height of a mountain or hill's summit relative to the lowest contour line encircling it but containing no higher summit within it. It is a measure of the independence of a summit. A peak's ''key col'' (the highest col surrounding the peak) is a unique point on this contour line and the ''parent peak'' is some higher mountain, selected according to various criteria. Definitions The prominence of a peak may be defined as the least drop in height necessary in order to get from the summit to any higher terrain. This can be calculated for a given peak in the following way: for every path connecting the peak to higher terrain, find the lowest point on the path; the ''key col'' (or ''key saddle'', or ''linking col'', or ''link'') is defined as the highest of these points, along all connecting paths; the pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winston Churchill
Sir Winston Leonard Spencer Churchill (30 November 187424 January 1965) was a British statesman, soldier, and writer who served as Prime Minister of the United Kingdom twice, from 1940 to 1945 during the Second World War, and again from 1951 to 1955. Apart from two years between 1922 and 1924, he was a Member of Parliament (MP) from 1900 to 1964 and represented a total of five constituencies. Ideologically an economic liberal and imperialist, he was for most of his career a member of the Conservative Party, which he led from 1940 to 1955. He was a member of the Liberal Party from 1904 to 1924. Of mixed English and American parentage, Churchill was born in Oxfordshire to a wealthy, aristocratic family. He joined the British Army in 1895 and saw action in British India, the Anglo-Sudan War, and the Second Boer War, gaining fame as a war correspondent and writing books about his campaigns. Elected a Conservative MP in 1900, he defected to the Liberals in 1904. In H. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska State Legislature
The Alaska Legislature is the state legislature of the U.S. state of Alaska. It is a bicameral institution consisting of the 40-member Alaska House of Representatives (lower house) and the 20-member Alaska Senate (upper house). There are 40 House Districts (1–40) and 20 Senate Districts (A–T). With a total of 60 lawmakers, the Alaska Legislature is the smallest bicameral state legislature in the United States and the second-smallest of all state legislatures (only the 49-member unicameral Nebraska Legislature is smaller). There are no term limits for either chamber. The Alaska Legislature meets in the Alaska State Capitol in Juneau, Alaska. The current sitting is the 32nd Alaska State Legislature. Organization Non-professional legislature Unlike other state legislatures with longer sessions, the Alaska Legislature's comparatively short session allows many lawmakers to retain outside employment, especially in the state's many seasonal industries, such as fishing and tourism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
