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Saint Elias Mountains
The Saint Elias Mountains (french: Chaîne Saint-Élie) are a subgroup of the Pacific Coast Ranges, located in southeastern Alaska in the United States, Southwestern Yukon and the very far northwestern part of British Columbia in Canada. The range spans Wrangell-St. Elias National Park and Preserve in the United States and Kluane National Park and Reserve in Canada and includes all of Glacier Bay National Park in Alaska. In Alaska, the range includes parts of the city/borough of Yakutat and the Hoonah-Angoon and Valdez-Cordova census areas. This mountain range is named after Mount Saint Elias, which in turn was named in 1741 by the Danish explorer Vitus Bering. Geology The St. Elias Mountains form the highest coastal mountain range on Earth. It formed due to the subduction of the Yakutat microplate underneath the North American Plate. The Yakutat microplate is a wedge shaped oceanic plateau with a thickness of . Similar to the adjacent Pacific plate, which has a crustal thick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Plate
The North American Plate is a tectonic plate covering most of North America, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores. With an area of , it is the Earth's second largest tectonic plate, behind the Pacific Plate (which borders the plate to the west). It extends eastward to the Mid-Atlantic Ridge and westward to the Chersky Range in eastern Siberia. The plate includes both continental and oceanic crust. The interior of the main continental landmass includes an extensive granitic core called a craton. Along most of the edges of this craton are fragments of crustal material called terranes, which are accreted to the craton by tectonic actions over a long span of time. It is thought that much of North America west of the Rocky Mountains is composed of such terranes. Boundaries The southern boundary with the Cocos Plate to the west and the Caribbean Plate to the east is a transform fault, represented by the Swan Islands Transform Fault unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syntaxis (geology)
A syntaxis is an abrupt major change in the dominant orientation of the main fold and thrust structures in an orogenic belt. For example, the Himalayan belt forms a continuous gentle curve in its main part, running almost perpendicular to the motion of the Indian Plate as it collides with the Eurasian Plate. This thrust-dominated plate boundary connects at both ends to the highly oblique, strike-slip In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic ... dominated boundaries running through Pakistan and Myanmar, forming the Nanga Parbat syntaxis to the west and the Namche Barwa syntaxis in the east. References {{Reflist Structural geology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Cook (Saint Elias Mountains)
Mount Cook (or Boundary Peak 182) is a high peak on the Yukon Territory-Alaska border, in the Saint Elias Mountains of North America. It is approximately 15 miles southwest of Mount Vancouver and 35 miles east-southeast of Mount Saint Elias. It forms one of the corners of the jagged border, which is defined to run in straight lines between the major peaks. The same border also separates Kluane National Park in the Yukon Territory from Wrangell-St. Elias National Park and Preserve in Alaska. Like many peaks of the Saint Elias Mountains, Mount Cook is a massive peak, with a large rise above local terrain. For example, the southwest face drops to the Marvine Glacier in approximately . It is also quite close to tidewater: Disenchantment Bay is less than from the summit. Mount Cook was first climbed in 1953. It is not often climbed due to its remoteness, the size of the mountain, the typically poor weather (due to its proximity to the ocean), and the fact that it is not one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malaspina Glacier
__NOTOC__ The Malaspina Glacier (Lingít: ''Sít' Tlein'') in southeastern Alaska is the largest piedmont glacier in the world. Situated at the head of the Alaska Panhandle, it is about wide and long, with an area of some . Name The Lingít name translates to Big Glacier. The colonial name for the glacier is in honor of Alessandro Malaspina, a Tuscan explorer in the service of the Spanish Navy, who visited the region in 1791. In 1874, W.H. Dall, of what is now the U.S. National Geodetic Survey, bestowed the name "Malaspina Plateau" on it, not realizing its true geological character. Geography The Malaspina Glacier actually comprises Seward Glacier, Agassiz Glacier, and Marvine/Hayden Glacier, which converge as they spill out from the Saint Elias Mountains onto the coastal plain facing the Gulf of Alaska between Icy Bay and Yakutat Bay. Officially, these three glaciers are classified independently, such that Malaspina Glacier does not technically exist. The three glaciers are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Vancouver
Mount Vancouver is the 15th highest mountain in North America. Its southern side lies in Glacier Bay National Park and Preserve at the top of the Alaska panhandle, while its northern side is in Kluane National Park and Reserve in the southwestern corner of Yukon, Canada. Mount Vancouver has three summits: north, middle, and south, with the middle summit being the lowest. The south summit, Good Neighbor Peak at , straddles the international border while the north summit is slightly higher at . The mountain was named by William Healey Dall in 1874 after George Vancouver, who explored the southeast coast of Alaska from 1792 to 1794. Notable Ascents *1949 ''North Buttress'' (northwest ridge): FA of mountain by William Hainsworth, Alan Bruce-Robertson, Bob McCarter, Noel Odell; with Walter Wood in support. *1975 ''Northeast Ridge'' (to north peak), FA by Cliff Cantor, Bob Dangel, Paul Ledoux, Rob Milne, Hal Murray, Bob Walker, John Yates and Barton DeWolf. *1977 ''West Face'', FA by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kluane National Park
Kluane National Park and Reserve (; french: Parc national et réserve de parc national de Kluane) are two protected areas in the southwest corner of the territory of Yukon. The National Park Reserve was set aside in 1972 to become a national park, pending settlement of First Nations land claims. It covered an area of . When agreement was reached with the Champagne and Aishihik First Nations over an eastern portion of the Reserve, that part—about —became a national park in 1993, and is a unit of the national park system administered co-operatively with Parks Canada. The larger western section remains a Reserve, awaiting a final land claim settlement with the Kluane First Nation. The park borders B.C. to the south, while the Reserve borders both B.C. to the south, and the United States (Alaska) to the south and west. The Reserve includes the highest mountain in Canada, Mount Logan () of the Saint Elias Mountains. Mountains and glaciers, including Donjek Glacier, dominate the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seward Glacier
Seward is the name of: People Surname *Seward (surname) Middle name *William Seward Burroughs I (1857–1898), inventor of adding machine *William S. Burroughs (1914–1997), American novelist, poet, essayist and spoken word performer *John Seward Johnson II (born 1930), American sculptor * William S. Burroughs, Jr. (1947–1981), author and son of the above First name * Seward Collins (1899–1952), publisher of ''The American Review'', prominent pre–World War II proponent of fascism * Seward Smith, American politician, associate justice of the Dakota Territory Supreme Court Places United States Counties * Seward County, Kansas * Seward County, Nebraska Cities and towns * Seward, Alaska * Seward, Illinois * Seward Township, Kendall County, Illinois * Seward Township, Winnebago County, Illinois * Seward, Kansas * Seward Township, Minnesota * Seward, Nebraska * Seward, New York * Seward, North Carolina * Seward, Pennsylvania Others * Seward Highway, Alaska * Seward Penins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagley Icefield
The Bagley Icefield (also called Bagley Ice Valley) in southeastern Alaska is the second largest nonpolar icefield in North America. It was named after James W. Bagley, a USGS topographic engineer who developed the Bagley T-3 camera and mapped Alaska prior to World War I. At 200 km (127 mi) long, 10 km (6 mi) wide, and up to 1 km (3,000 ft) thick, it covers most of the core of the Saint Elias Mountains and part of the Chugach Mountains. It nourishes dozens of valley glaciers that drain down both sides of the range, including the Tana, Miles, and Guyot glaciers. The area of the combined Bagley Icefield and Bering Glacier System, including tributaries, is 5,200 km² (1,900 sq mi). 19th-century explorers attempting to climb Mt. St. Elias, including Luigi Amedeo, Duke of the Abruzzi, who successfully made the first ascent in 1897, did not recognize that the huge glacier now named Bagley Icefield actually forms the upper reaches of the di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yakutat Icefield
Yakutat may refer to: Geography *Yakutat, Alaska, a unified city-borough in Alaska *Yakutat Bay, a bay on the coast of Alaska *Yakutat Airport, a state-owned public-use airport in Alaska in the United States *Yakutat Army Airfield, a former United States Army airfield which was redeveloped into the current airport *Yakutat Colony, a former Russian penal colony on the U.S. National Register of Historic Places Ships * , a United States Navy seaplane tender in commission from 1944 to 1946 * , later WHEC-380, a United States Coast Guard cutter in commission from 1948 to 1971 Other uses *Yakutat Block The Yakutat Block is a terrane in the process of accreting to the North American continent along the south central coast of Alaska. It has been displaced about northward since the Cenozoic along the Queen Charlotte-Fairweather fault system. Th ..., a fragment of the Earth's crust in the process of accreting to the North American continent along the south central coast of Alaska *Yaku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southcentral Alaska
Southcentral Alaska (russian: Юго-Центральная Аляска) is the portion of the U.S. state of Alaska consisting of the shorelines and uplands of the central Gulf of Alaska. Most of the population of the state lives in this region, concentrated in and around the city of Anchorage, Alaska, Anchorage. The area includes Cook Inlet, the Matanuska-Susitna Valley, the Kenai Peninsula, Prince William Sound, and the Copper River (Alaska), Copper River Valley. Tourism, fisheries, and petroleum production are important economic activities. Cities The major city is Anchorage, Alaska, Anchorage. Other major towns include Palmer, Alaska, Palmer, Wasilla, Alaska, Wasilla, Kenai, Alaska, Kenai, Soldotna, Alaska, Soldotna, Homer, Alaska, Homer, Seward, Alaska, Seward, Valdez, Alaska, Valdez, and Cordova, Alaska, Cordova. Climate The climate of Southcentral Alaska is subarctic climate, subarctic. Temperatures range from an average high of in July to an average low of in Dece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Range
The Alaska Range is a relatively narrow, 600-mile-long (950 km) mountain range in the southcentral region of the U.S. state of Alaska, from Lake Clark at its southwest endSources differ as to the exact delineation of the Alaska Range. ThBoard on Geographic Namesentry is inconsistent; part of it designates Iliamna Lake as the southwestern end, and part of the entry has the range ending at the Telaquana and Neacola Rivers. Other sources identify Lake Clark, in between those two, as the endpoint. This also means that the status of the Neacola Mountains is unclear: it is usually identified as the northernmost subrange of the Aleutian Range, but it could also be considered the southernmost part of the Alaska Range. to the White River in Canada's Yukon Territory in the southeast. The highest mountain in North America, Denali, is in the Alaska Range. It is part of the American Cordillera. The Alaska range is one of the higher ranges in the world after the Himalayas and the Andes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
