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Mount Williwaw
Mount Williwaw is a prominent mountain summit located in the Chugach Mountains, in Anchorage Municipality in the U.S. state of Alaska. Mount Williwaw, the highest peak of the Chugach Front Range, is situated in Chugach State Park, southeast of downtown Anchorage, and northeast of The Ramp. The Williwaw Lakes lie below the north and west slopes of the mountain and provide pleasant campsites for climbers not wanting to climb the mountain in one arduous day. The mountain's name was officially adopted in 1964 by the United States Geological Survey based on a recommendation by the Mountaineering Club of Alaska because an infantry company from nearby Fort Richardson was caught in a williwaw near this mountain in May 1962. Three men died of exhaustion before the group was rescued. The first ascent of this peak was made June 11, 1965, by David Judd, M. Judd, Myers, and Parker via the South Ridge. Climate Based on the Köppen climate classification, Mount Williwaw is located in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chugach Mountains
The Chugach Mountains of southern Alaska are the northernmost of the several mountain ranges that make up the Pacific Coast Ranges of the western edge of North America. The range is about long and wide, and extends from the Knik and Turnagain Arms of the Cook Inlet on the west to Bering Glacier, Tana Glacier, and the Tana River on the east. It is bounded on the north by the Matanuska, Copper, and Chitina rivers. The highest point of the Chugach Mountains is Mount Marcus Baker, at , but with an average elevation of , most of its summits are not especially high. Even so, its position along the Gulf of Alaska ensures more snowfall in the Chugach than anywhere else in the world, an annual average of over 1500 cm (800 in).Steep, Freeskiing Documentary, 2007 The mountains are protected in the Chugach State Park and the Chugach National Forest. Near to Anchorage, they are a popular destination for outdoor activities. The Richardson Highway, Seward Highway, Portage ... [...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] |
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] |
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] |
Tail Feather Peak
Tail Feather Peak is a mountain summit in the U.S. state of Alaska. This mountain is located southeast of Anchorage, Alaska, Anchorage in the Chugach Mountains and Chugach State Park. Precipitation Surface runoff, runoff from the mountain drains into Ship Creek (Alaska), Ship Creek, thence Knik Arm. Topographic relief is significant as the summit rises 2,560 feet (780 m) in 0.75 mile (1.2 km) on the west slope. This mountain's toponym has not been officially adopted by the U.S. Board on Geographic Names. Climate Based on the Köppen climate classification, Tail Feather Peak is located in a subarctic climate zone with long, cold, snowy winters, and cool summers. Weather systems coming off the Gulf of Alaska are forced upwards by the Chugach Mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall. Winter temperatures can drop below −10 °F with wind chill factors below −20 °F. The months May through June offer th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Creek (Alaska)
Ship Creek ( Dena'ina: ''Dgheyaytnu'') is an Alaskan river that flows from the Chugach Mountains into Cook Inlet. The Port of Anchorage at the mouth of Ship Creek gave its name ("Knik Anchorage") to the city of Anchorage that grew up nearby. The river lies entirely within the limits of the Municipality of Anchorage, Alaska. Most of its upper length traverses Joint Base Elmendorf-Richardson. History The Dena'ina language name for the creek is Dgheyaytnu. In early 1915, a tent city formed at the mouth of Ship Creek for workers involved in the construction of the Alaska Railroad. This disorganized community was soon relocated south to the bluffs along the creek, forming what would become the early town of Anchorage. In July 1923, President Warren G. Harding arrived at the Ship Creek rail station during his tour of the state to celebrate the completion of the Alaska Railroad and deliver several speeches in Anchorage. Recreation Ship Creek is a popular area for sport fishing a ... [...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 th ... [...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 run ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Ascent
In mountaineering, a first ascent (abbreviated to FA in guide books) is the first successful, documented attainment of the top of a mountain or the first to follow a particular climbing route. First mountain ascents are notable because they entail genuine exploration, with greater risks, challenges and recognition than climbing a route pioneered by others. The person who performs the first ascent is called the first ascensionist. In free climbing, a first ascent (or first free ascent, abbreviated FFA) of a climbing route is the first successful, documented climb of a route without using equipment such as anchors or ropes for aiding progression or resting. History The details of the first ascents of even many prominent mountains are scanty or unknown; sometimes the only evidence of prior summiting is a cairn, artifacts, or inscriptions at the top. Today, first ascents are generally carefully recorded and usually mentioned in guidebooks. The term is also used when referri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chugach State Park
Chugach State Park covers 495,204 acres (2,004 square kilometers) immediately east of the Anchorage Bowl in south-central Alaska. Though primarily in the Municipality of Anchorage, a small portion of the park north of the Eklutna Lake area in the vicinity of Pioneer Peak lies within the Matanuska-Susitna Borough. Established by legislation signed into law on August 6, 1970, by Alaska Governor Keith Miller, this state park was created to provide recreational opportunities, protect the scenic value of the Chugach Mountains and other geographic features, and ensure the safety of the water supply for Anchorage. The park, managed by Alaska State Parks, is the third-largest state park in the United States, and consists of geographically disparate areas each with different attractions and facilities.Littlepage, Dean, ''A Falcon Guide Hiking Alaska: A Guide to Alaska's Greatest Hiking Adventures,'' The Globe Pequot Press, Guilford, Connecticut, p. 150 (2006). Only Anza-Borrego Desert S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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