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McHugh Peak
McHugh Peak is a mountain summit located in the western Chugach Mountains, in Anchorage Municipality, in the U.S. state of Alaska. McHugh Peak is situated in Chugach State Park, southeast of downtown Anchorage, and southwest of O'Malley Peak. Reaching the top involves hiking on a ridge trail and scrambling the final summit tor. The hike to McHugh Peak is detailed in several popular guidebooks. This geographic feature's local name was reported in 1942 by the Army Map Service, and was officially adopted in 1969 by the U.S. Board on Geographic Names. The mountain's name is derived from McHugh Creek which drains the south slope of this peak, and the creek's name was first published in 1912 by the U.S. Coast and Geodetic Survey. This mountain is called Q'isqa Dghelaya in the Denaʼina language, meaning ''Banjo Snowshoe Mountain''. "Q'isqa" are temporary snowshoes made of lashed brush.Kari, James and James Fall. ''Shem Pete’s Alaska : The Territory of the Upper Cook Inlet Dena’ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tor (rock Formation)
A tor, which is also known by geomorphologists as either a castle koppie or kopje, is a large, free-standing rock outcrop that rises abruptly from the surrounding smooth and gentle slopes of a rounded hill summit or ridge crest. In the South West of England, the term is commonly also used for the hills themselves – particularly the high points of Dartmoor in Devon and Bodmin Moor in Cornwall.Ehlen, J. (2004) ''Tor'' in Goudie, A., ed., pp. 1054-1056. ''Encyclopedia of Geomorphology.'' Routledge. London, England. Etymology Although English topographical names often have a Celtic etymology, the Oxford English Dictionary lists no cognates to the Old English word in either the Breton or Cornish languages (the Scottish Gaelic ''tòrr'' is thought to derive from the Old English word). It is therefore accepted that the English word ''Tor'' derives from the Old Welsh word ''tẁrr'' or ''twr'', meaning a cluster or heap. Formation Tors are landforms created by the erosion and weath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Army Map Service
The Army Map Service (AMS) was the military cartographic agency of the United States Department of Defense from 1941 to 1968, subordinated to the United States Army Corps of Engineers. On September 1, 1968, the AMS was redesignated the U.S. Army Topographic Command (USATC) and continued as an independent organization until January 1, 1972, when it was merged into the new Defense Mapping Agency (DMA) and redesignated as the DMA Topographic Center (DMATC). On October 1, 1996, DMA was folded into the National Imagery and Mapping Agency (NIMA), which was redesignated as the National Geospatial-Intelligence Agency (NGA) in 2003. The major task of the Army Map Service was the compilation, publication and distribution of military topographic maps and related products required by the Armed Forces of the United States. The AMS was also involved in the preparation of extraterrestrial maps of satellite and planetary bodies; the preparation of national intelligence studies; the establishment o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Anchorage, Alaska
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Alaska
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Alaska
The geology of Alaska includes Precambrian igneous and metamorphic rocks formed in offshore terranes and added to the western margin of North America from the Paleozoic through modern times. The region was submerged for much of the Paleozoic and Mesozoic and formed extensive oil and gas reserves due to tectonic activity in the Arctic Ocean. Alaska was largely ice free during the Pleistocene, allowing humans to migrate into the Americas. Geologic History, Stratigraphy & Tectonics Compared with other areas of the North American continent, Alaska formed in the recent geologic past. Until 200 million years ago, western North America terminated at the Rocky Mountains, 120 miles further inland than the current shoreline, until the addition of the Yukon-Tanana Terrane. The Birch Creek Schist is the oldest rock in Alaska's interior and forms the core of the Yukon-Tanana Terrane with muscovite-quartz schist, mica quartzite and graphite schist. This intensely folded and rock unit extends f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountain Peaks Of Alaska
This article comprises three sortable tables of major mountain peaksThis article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a susexxleast of topographic prominence. All summits in this article have at least 500 meters of topographic prominence. An ultra-prominent summit is a summit with at least of topographic prominence. of the U.S. State of Alaska. The summit of a mountain or hill may be measured in three principal ways: #The topographic elevation of a summit measures the height of the summit above a geodetic sea level.If the elevation or prominence of a summit is calculated as a range of values, the arithmetic mean is shown. The first table below ranks the 100 highest major summits of Alaska by elevation. #The topographic prominence of a summit is a measure of how high the summit rises above its surroundings.The topographic prominence of a summit is the topographic elevation difference between the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turnagain Arm
Turnagain Arm ( Dena'ina: ''Tutl'uh'') is a waterway into the northwestern part of the Gulf of Alaska. It is one of two narrow branches at the north end of Cook Inlet, the other being Knik Arm. Turnagain is subject to climate extremes and large tide ranges. Geography Turnagain extends in an east-west direction, and is between long. It forms part of the northern boundary of Kenai Peninsula, and reaches on the east to within of Passage Canal, a western branch of Prince William Sound. Turnagain is characterized by remarkably large tides of up to 40 feet (12 meters) which are the largest tides in the United States. The flood tide often begins with a tidal bore especially on large tides with a strong east wind, which has a height of at times, and runs in from the west at a speed of an hour. At low tide, the arm becomes a broad mud flat, cut by the stream channels. Historically small steamers entered and left on high water though the practice is rare at best since most if not all the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Runoff
Surface runoff (also known as overland flow) is the flow of water occurring on the ground surface when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate in the soil. This can occur when the soil is saturated by water to its full capacity, and the rain arrives more quickly than the soil can absorb it. Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or man-made processes. Surface runoff is a major component of the water cycle. It is the primary agent of soil erosion by water. The land area producing runoff that drains to a common point is called a drainage basin. Runoff that occurs on the ground surface before reaching a channel can be a nonpoint source of pollution, as it can carry man-made contaminants or natural forms of pollution (such as rotting leaves). Man-made contaminants in runoff i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subarctic Climate
The subarctic climate (also called subpolar climate, or boreal climate) is a climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, generally at latitudes from 50° to 70°N, poleward of the humid continental climates. Subarctic or boreal climates are the source regions for the cold air that affects temperate latitudes to the south in winter. These climates represent Köppen climate classification ''Dfc'', ''Dwc'', ''Dsc'', ''Dfd'', ''Dwd'' and ''Dsd''. Description This type of climate offers some of the most extreme seasonal temperature variations found on the planet: in winter, temperatures can drop to below and in summer, the temperature may exceed . However, the summers are short; no more than three months of the year (but at least one month) must have a 24-hour average temperature of at least to fall into this category of climate, and the coldest month should ave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denaʼina Language
Denaʼina , also Tanaina, is the Athabaskan language of the region surrounding Cook Inlet. It is geographically unique in Alaska as the only Alaska Athabaskan language to include territory which borders salt water. Four dialects are usually distinguished: # Upper Inlet, spoken in Eklutna, Knik, Susitna, Tyonek # Outer Inlet, spoken in Kenai, Kustatan, Seldovia # Iliamna, spoken in Pedro Bay, Old Iliamna, Lake Iliamna area # Inland, spoken in Nondalton, Lime Village Of the total Denaʼina population of about 900 people, only 75–95 members still speak Denaʼina. James Kari has done extensive work on the language since 1972, including his edition with Alan Boraas of the collected writings of Peter Kalifornsky in 1991. Joan M. Tenenbaum also conducted extensive field research on the language in the 1970s. Ethnonym The word is composed of the , meaning 'person' and the human plural suffix . While the apostrophe which joins the two parts of this word ordinarily indicates a glo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O'Malley Peak
O'Malley Peak is a mountain summit located in the Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. O'Malley Peak is situated in Chugach State Park, southeast of downtown Anchorage, west of Mount Williwaw, and northwest of The Ramp, which is its nearest higher peak. Access is via the Powerline Trail with several scramble routes to the summit. Dr. James O'Malley "Doc" O'Malley moved to Anchorage in 1946 and practiced medicine there until his death in 1974. He was one of the first doctors in town, respected by his peers and beloved by patients. There is also a school and road named after him in Anchorage.Anchorage Daily Times - obituary of Dr. O'Malley - August 12, 1974 Climate Based on the Köppen climate classification, O'Malley Peak is located in a subarctic climate zone with long, cold, snowy winters, and mild summers. Weather systems coming off the Gulf of Alaska are forced upwards by the Chugach Mountains (orographic lift), causing heavy preci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
