|
Mount Sheldon
Mount Sheldon is a summit in Alaska, United States. Description Mount Sheldon is located in the Alaska Range and in Denali National Park and Preserve. It is situated northwest of Polychrome Mountain. Precipitation runoff from the mountain drains into tributaries of the Toklat River. Topographic relief is significant as the summit rises nearly above the river in 1.7 mile (2.7 km). Climate Based on the Köppen climate classification, Mount Sheldon is located in a tundra climate zone with long, cold, snowy winters, and mild summers. Winter temperatures can drop below −20 °F with wind chill factors below −30 °F. The months May through June offer the most favorable weather for climbing or viewing. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Alexander Sheldon
Charles Alexander Sheldon (17 October 1867 – 21 September 1928) was an American conservation movement, conservationist and the "Father of Denali National Park". He had a special interest in the bighorn sheep and spent time hunting with the Seri people, Seri Indians in Sonora, Mexico, who knew him as ''Maricaana Caamla'' ("American hunter"). Another favorite haunt was the lakes and rivers which later became Kejimkujik National Park in Nova Scotia where Sheldon built a cabin at Beaverskin Lake. In December 1905, Sheldon was elected member of the Boone and Crockett Club, a wildlife conservation organization founded by Theodore Roosevelt and George Bird Grinnell in 1887. He died on September 21, 1928, in Nova Scotia while on his annual stay at his cabin where he spent much of his final years. The Sheldon National Wildlife Refuge in northwestern Nevada is named in Sheldon's honor, as is Mount Sheldon in Denali National Park. Bibliography *''The Wilderness of the North Pacific Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. 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'' indicates a tropical rainforest climate. The system assigns a temperature subgroup for all groups other than those in the ''A'' group, indicated by the third letter for climates in ''B'', ''C'', ''D'', and the second letter for climates in ''E''. Other examples include: ''Cfb'' indicating an oceanic climate with warm summers as indicated by the ending ''b.'', while ''Dwb'' indicates a semi-Monsoon continental climate, monsoonal continental climate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Denali Borough, 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 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 climate, mountains te ... [...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 Mountains And Mountain Ranges Of Denali National Park And Preserve
Mountains in Denali National Park and Preserve are part of the Alaska Range, with several subsidiary ranges included within the overall Alaska Range. Denali (also known as Mount McKinley), is the highest peak in the park and the highest peak in North America at The names listed here reflect the official names in the USGS U.S. Board on Geographic Names database. They in most cases exclude subsidiary peaks of larger mountains — McKinley alone has dozens of prominent points above 15,000 feet. The final version of this list will include all named peaks in the park and preserve above and a selection of prominent named peaks of lesser height. Central Alaska Range The central Alaska Range is dominated by the enormous Denali and its complex of subsidiary summits, spurs and buttresses. Of the other central Alaska Range summits, only Mount Foraker substantially exceeds , and most prominent peaks are in the – range. * Denali - ; * Kahiltna Dome - ; * Kahiltna Peaks - ; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denali
Denali (), federally designated as Mount McKinley, is the highest mountain peak in North America, with a summit elevation of above sea level. It is the tallest mountain in the world from base to peak on land, measuring . On p. 20 of Helman (2005):"the base to peak rise of Mount McKinley is the largest of any mountain that lies entirely above sea level, some ". With a topographic prominence of and a topographic isolation of , Denali is the third most prominent and third-most isolated peak on Earth, after Mount Everest and Aconcagua. Located in the Alaska Range in the interior of the U.S. state of Alaska, Denali is the centerpiece of Denali National Park and Preserve. The Koyukon people who inhabit the area around the mountain have referred to the peak as "Denali" for centuries. In 1896, a gold prospector named it "Mount McKinley" in support of then-presidential candidate William McKinley, who later became the 25th president; McKinley's name was the official na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Board On Geographic Names
The United States Board on Geographic Names (BGN) is a Federal government of the United States, federal body operating under the United States Secretary of the Interior. The purpose of the board is to establish and maintain uniform usage of geography, geographic names throughout the federal government of the United States. History Following the American Civil War, more and more American pioneer, American settlers began moving westward, prompting the Federal government of the United States, U.S. federal government to pursue some sort of consistency for referencing landmarks on maps and in official documents. As such, on January 8, 1890, Thomas Corwin Mendenhall, superintendent of the United States Coast and Geodetic Survey Office, wrote to 10 noted geographers "to suggest the organization of a Board made up of representatives from the different Government services interested, to which may be referred any disputed question of geographical orthography." President Benjamin Harrison si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tundra Climate
The tundra climate is a polar climate sub-type located in high latitudes and high mountains. It is classified as ET according to the Köppen climate classification. It is a climate which at least one month has an average temperature high enough to melt snow (), but no month with an average temperature in excess of . If the climate occurs at high elevations, it is known as alpine climate. Despite the potential diversity of climates in the ''ET'' category involving precipitation, extreme temperatures, and relative wet and dry seasons, this category is rarely subdivided. Rainfall and snowfall are generally slight due to the low vapor pressure of water in the chilly atmosphere, but as a rule potential evapotranspiration is extremely low, allowing soggy terrain of swamps and bogs even in places that get precipitation typical of deserts of lower and middle latitudes. The amount of native tundra biomass depends more on the local temperature than the amount of precipitation. Tundra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topographic Relief
Terrain (), alternatively relief or topographical relief, is the dimension and shape of a given surface of land. In physical geography, terrain is the lay of the land. This is usually expressed in terms of the elevation, slope, and orientation of terrain features. Terrain affects surface water flow and distribution. Over a large area, it can affect weather and climate patterns. Bathymetry is the study of underwater relief, while hypsometry studies terrain relative to sea level. Importance The understanding of terrain is critical for many reasons: * The terrain of a region largely determines its suitability for human settlement: flatter alluvial plains tend to have better farming soils than steeper, rockier uplands. * In terms of environmental quality, agriculture, hydrology and other interdisciplinary sciences; understanding the terrain of an area assists the understanding of watershed boundaries, drainage characteristics, drainage systems, groundwater systems, water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Range
The Alaska Range is a relatively narrow, mountain range in the Southcentral Alaska, 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 (Yukon), White River in Canada's Yukon Territory in the southeast. Denali, the highest mountain in North America, is in the Alaska Range. The range is part of the American Cordillera. The Alaska Range is one of the highest mountain ranges in the world, afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toklat River
The Toklat River () is an tributary of the Kantishna River in central Alaska in the United States It drains an area on the north slope of the Alaska Range on the south edge of the Tanana Valley southwest of Fairbanks. It issues from unnamed glaciers in the northern Alaska Range in Denali National Park and Preserve, northeast of Denali. It flows generally northwest through hilly country to the tundra In physical geography, a tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: #Arctic, Arctic, Alpine tundra, Alpine, and #Antarctic ... to the north of the Alaska Range. The river was described as the ''Toclat'' by Lt. H.T. Allen in 1885. Other names or variants include ''Tootl'ot Huno'', ''Tootl'ot Huno' Hutl'ot'', ''Tootl'ot No' '' and ''Tutlut River''. Depth of 50 ft, width of 25 ft Gallery See also * List of rivers of Alaska References {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychrome Mountain
Polychrome Mountain is a prominent 5,900+ ft (1,798+ m) elevation summit located in Denali National Park and Preserve, in the Alaska Range, in the U.S. state of Alaska. It is a landmark in the Toklat River valley visible to tourists as the park road traverses the southern slope of the mountain. Polychrome Mountain is situated one mile north of Polychrome Pass, and northeast of Divide Mountain. Although modest in elevation, relief is significant since the peak rises nearly above the surrounding valley floor in less than two miles. This mountain's descriptive name, meaning "many colors", was first published in 1954 by the U.S. Geological Survey, and is taken from the pass with the same name.''Dictionary of Alaska Place Names'', Donald J. Orth author, United States Government Printing Office (1967), page 766. Geology About sixty million years ago, the mountain was part of a low plain composed of deep beds of gravel covered by ancient plants and varied animal life. The plain wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
