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Ernest De Koven Leffingwell
Ernest de Koven Leffingwell (January 13, 1875January 27, 1971) was an arctic explorer, geologist and Spanish–American War veteran. During the period from 1906 to 1914, Leffingwell spent nine summers and six winters on the Arctic coast of Alaska, making 31 trips by dog sled or small boats. He created the first accurate map of a large part of the Alaskan arctic coastline. He was the first to scientifically describe permafrost and to pose theories about permafrost which have largely proven true. He accurately identified the oil potential of the North Slope region of Alaska. Biography Ernest de Koven Leffingwell was born January 13, 1875, in Knoxville, Illinois, to Charles and Elizabeth (née Francis) Leffingwell. He attended the grammar school at Racine College, then attended Trinity College, Hartford, Connecticut, where he was captain of the track team his senior year, graduated with the AB degree in 1895 and was awarded a MA in 1900. He studied physics and geology at the Univ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knoxville, Illinois
Knoxville is a city in Knox County, Illinois, United States. The population was 2,911 at the 2010 census. It is part of the Galesburg Micropolitan Statistical Area. Description Knoxville is located just southeast of the City of Galesburg. There is a public square in the center of town with several historic buildings surrounding it including Knox County's first courthouse, city hall, the Ball log cabin, the town gallows, and several other important buildings. The Knox County Fairgrounds is just north of Knoxville on Henderson Road. Knoxville is served with two exits on Interstate 74, at U.S. Highway 150 east of town and at Henderson Road north of town. U.S. Highway 150 runs east and west through Knoxville and serves as the main business thoroughfare. Illinois Highway 97 and Knox County Highway 8 also enter the city. The Knoxville Cemetery lies in the northern part of town on Market Street. The Knox County Nursing Home is located in the city. There is a grade school in Knoxville ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ejnar Mikkelsen
Ejnar Mikkelsen (December 23, 1880 – May 1, 1971) was a Danish polar explorer and author. He is most known for his expeditions to Greenland. Biography Mikkelsen was born in Vester Brønderslev, Jutland. He served in the Georg Carl Amdrup expedition to Christian IX Land, East Greenland (1900), and in the Baldwin-Ziegler North Pole Expedition to Franz Joseph Land (1900–02). With Ernest de Koven Leffingwell he organized the Anglo-American polar expedition which wintered off Flaxman Island, Alaska, in 1906–07. They lost their ship, but in a sledge journey over the ice they located the continental shelf of the Arctic Ocean, 65 miles (105 km) offshore, where in 2 miles (3 km) the sea increased from 50 meters (164 ft) to more than 690 meters (2264 ft) in depth.Mills, William James (2003"Mikkelsen, Ejnar (1880–1971)"''Exploring polar frontiers: a historical encyclopedia, Volume 1'' pp 426 ff, ABC-CLIO , Organizing an expedition to map out the northeast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooks Range
The Brooks Range ( Gwich'in: ''Gwazhał'') is a mountain range in far northern North America stretching some from west to east across northern Alaska into Canada's Yukon Territory. Reaching a peak elevation of on Mount Isto, the range is believed to be approximately 126 million years old. In the United States, these mountains are considered a subrange of the Rocky Mountains, whereas in Canada they are considered separate, as the northern border of the Rocky Mountains is considered to be the Liard River far to the south in the province of British Columbia. While the range is mostly uninhabited, the Dalton Highway and Trans-Alaska Pipeline System run through the Atigun Pass (1,415 m, 4,643 ft) on their way to the oil fields at Prudhoe Bay on Alaska's North Slope. The Alaska Native villages of Anaktuvuk and Arctic Village, as well as the very small communities of Coldfoot, Wiseman, Bettles, and Chandalar, are the range's only settlements. In the far west, near the Wul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska North Slope
The Alaska North Slope ( Iñupiaq: ''Siḷaliñiq'') is the region of the U.S. state of Alaska located on the northern slope of the Brooks Range along the coast of two marginal seas of the Arctic Ocean, the Chukchi Sea being on the western side of Point Barrow, and the Beaufort Sea on the eastern. Petroleum resources The Alaska North Slope region includes the National Petroleum Reserve–Alaska, with the bulk of Alaska's known petroleum until the Prudhoe Bay Oil Field was discovered in 1968, followed by the Kuparuk River oil field in 1969. The region also includes the Arctic National Wildlife Refuge, which itself has been the subject of controversy surrounding the possibility of petroleum drilling within its boundaries. The petroleum extracted from the region is transferred south by means of the Trans-Alaska Pipeline System to Valdez on the Pacific Ocean. Under the North Slope is an ancient seabed, which is the source of the oil. Within the North Slope, there is a geologic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Geographical Society
The American Geographical Society (AGS) is an organization of professional geographers, founded in 1851 in New York City. Most fellows of the society are Americans, but among them have always been a significant number of fellows from around the world. The society encourages activities that expands geographical knowledge, and the interpretation of that knowledge so that it can be useful to geographers and other disciplines, especially in a policymaking environment. It is the oldest nationwide geographical organization in the United States. Over the century and a half of its existence, the AGS has been especially interested in three regions: the Arctic, the Antarctic, and Latin America. A signature characteristic of the AGS-sponsored exploration was the requirement that its expeditions produce tangible scientific results. History The AGS was founded by 31 New Yorkers, who were wealthy philanthropists, historians, publishers and editors. Among them were George Folsom, Henry Grinnell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Geographical Society
The Royal Geographical Society (with the Institute of British Geographers), often shortened to RGS, is a learned society and professional body for geography based in the United Kingdom. Founded in 1830 for the advancement of geographical sciences, the Society has 16,000 members, with its work reaching the public through publications, research groups and lectures. The Society was founded in 1830 under the name ''Geographical Society of London'' as an institution to promote the 'advancement of geographical science'. It later absorbed the older African Association, which had been founded by Sir Joseph Banks in 1788, as well as the Raleigh Club and the Palestine Association. In 1995 it merged with the Institute of British Geographers, a body for academic geographers, to officially become the Royal Geographical Society ''with IBG''. The society is governed by its Council, which is chaired by the Society's President, according to a set of statutes and standing orders. The members ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patron's Medal
The Royal Geographical Society's Gold Medal consists of two separate awards: the Founder's Medal 1830 and the Patron's Medal 1838. Together they form the most prestigious of the society's awards. They are given for "the encouragement and promotion of geographical science and discovery." Royal approval is required before an award can be made. The awards originated as an annual gift of fifty guineas from King William IV, first made in 1831, "to constitute a premium for the encouragement and promotion of geographical science and discovery." The Royal Geographical Society decided in 1839 to change this monetary award into the two gold medals. Prior to 1902 the Patron's Medal was alternatively known as the "Victoria Medal". Recipients include David Livingstone in 1855, Mary Somerville in 1869, Nain Singh Rawat in 1877, Ferdinand von Richthofen in 1878, Alfred Russel Wallace in 1892 and William Woodville Rockhill in 1893, to more recent winners including William Morris Davis in 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Historic Landmark
A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed on the country's National Register of Historic Places are recognized as National Historic Landmarks. A National Historic Landmark District may include contributing properties that are buildings, structures, sites or objects, and it may include non-contributing properties. Contributing properties may or may not also be separately listed. Creation of the program Prior to 1935, efforts to preserve cultural heritage of national importance were made by piecemeal efforts of the United States Congress. In 1935, Congress passed the Historic Sites Act, which authorized the Interior Secretary authority to formally record and organize historic properties, and to designate properties as having "national historical significance", and gave the Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leffingwell Camp Site
The Leffingwell Camp Site, on Flaxman Island, west of Barter Island on the Arctic Coast of Alaska, was used by polar explorer and geologist Ernest de Koven Leffingwell on his pioneering Anglo-American Polar Expedition of 1906–1908, which aimed to explore the Beaufort Sea. The expedition's ship, the ''Duchess of Bedford'', was allowed to become locked in ice which eventually destroyed it. The camp site was chosen before the ship was locked in ice, and was not merely the nearest landfall. The site was used by Leffingwell over several years, beyond the end of that expedition. Leffingwell created the first accurate map of a section of Alaskan coastline. He was the first to scientifically describe permafrost and to pose theories about permafrost which have largely proven true. He accurately identified the oil potential of the area, including assessing that it was not, in his day, technologically or economically feasible to develop it. Following the destruction of the ''Duchess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, 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 hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leffingwell Dwelling And Sheds Circa 1910
Leffingwell may refer to: People *Albert Leffingwell (1845–1916), physician and reformer *Albert Leffingwell (novelist) (1895–1946), American novelist *Charles Wesley Leffingwell (1840–1928), American author, educator, and Episcopal priest *Edward Leffingwell (1941–2014), American art critic and curator *Ernest de Koven Leffingwell (1875–1971) arctic explorer, geologist *Lee Leffingwell (b. 1939), American mayor of Austin, Texas *Frank Seth Leffingwell (1868–1945), a politician who was elected to public office in both the United States and Canada. *William Henry Leffingwell (1876–1934), an American management author, and the founder of National Office Management Association. *Russell Cornell Leffingwell (1878–1960), American banker Things *Leffingwell Camp Site *Leffingwell Inn The Leffingwell Inn (now known as Leffingwell House Museum) is a historic inn at 348 Washington Street in the Norwichtown section of Norwich, Connecticut. With a construction history dating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canning River (Alaska)
The Canning River flows through parts of the North Slope in the U.S. state of Alaska. The river begins in the Franklin Mountains of the Brooks Range in the northeastern part of the state. It flows generally north for through the Arctic National Wildlife Refuge and enters Camden Bay west of Kaktovik on the Beaufort Sea. See also * List of rivers of Alaska This is a List of rivers in Alaska, which are at least fifth-order according to the Strahler method of stream classification, and an incomplete list of otherwise-notable rivers and streams. Alaska has more than 12,000 rivers, and thousands more st ... References Rivers of North Slope Borough, Alaska Rivers of Alaska {{NorthSlopeAK-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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