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Kantishna, Alaska
Kantishna is an unincorporated community in Denali Borough, Alaska, United States, within Denali National Park and Preserve. Founded as a gold mining camp in 1905, it endured longer than similar communities in the area, having been constructed nearest to the source of the gold. It lies in the Kantishna Hills at the junction of Eureka Creek and Moose Creek, 3 mi (5 km) northwest of Wonder Lake, and near the mouth of the Kantishna River. Although the community was once also called "Eureka", the Board on Geographic Names officially ruled in favor of "Kantishna" in 1944, the name given to the post office that was built at the site in 1905. Its elevation is 1,696 feet (517 m). Transportation and lodging There are several remote lodges in Kantishna. Guests may stay at thDenali Backcountry Lodge Kantishna Roadhouse, or Camp Denali/North Face Lodge. The trip from thDenali Park Train Depot to the lodges, via lodge buses, takes more than six hours. Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unincorporated Area
An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as the military). There are many unincorporated communities and areas in the United States and Canada, but many countries do not use the concept of an unincorporated area. By country Argentina In Argentina, the provinces of Chubut Province, Chubut, Córdoba Province (Argentina), Córdoba, Entre Ríos Province, Entre Ríos, Formosa Province, Formosa, Neuquén Province, Neuquén, Río Negro Province, Río Negro, San Luis Province, San Luis, Santa Cruz Province, Argentina, Santa Cruz, Santiago del Estero Province, Santiago del Estero, Tierra del Fuego Province, Argentina, Tierra del Fuego, and Tucumán Province, Tucumán have areas that are outside any municipality or commune. Australia Unlike many other countries, Australia has only local go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denali National Park And Preserve
Denali National Park and Preserve, formerly known as Mount McKinley National Park, is a List of national parks of the United States, United States national park and National preserve, preserve located in Interior Alaska, centered on Denali (federally designated as Mount McKinley), the highest mountain in North America. The park and contiguous preserve encompass which is larger than the state of New Hampshire. On December 2, 1980, Denali Wilderness was established within the park. Denali's landscape is a mix of forest at the lowest elevations, including deciduous taiga, with tundra at middle elevations, and glaciers, snow, and bare rock at the highest elevations. The longest glacier is Kahiltna Glacier. Wintertime activities include dog sledding, cross-country skiing, and Snowmobile, snowmobiling. The park received 594,660 recreational visitors in 2018. History Prehistory and protohistory Human habitation in the Denali Region extends to more than 11,000 years before the present ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stibnite
Stibnite, sometimes called antimonite, is a sulfide mineral, a mineral form of antimony trisulfide ( Sb2 S3). It is a soft, metallic grey crystalline solid with an orthorhombic space group. It is the most important source for the metalloid antimony. The name is derived from the Greek through the Latin as the former name for the mineral and the element antimony. Structure Stibnite has a structure similar to that of arsenic trisulfide, As2S3. The Sb(III) centers, which are pyramidal and three-coordinate, are linked via bent two-coordinate sulfide ions. However, some studies suggest that the actual coordination polyhedra of antimony are SbS7, with (3+4) coordination at the M1 site and (5+2) at the M2 site. Some of the secondary bonds impart cohesion and are connected with packing. Stibnite is grey when fresh, but can turn superficially black due to oxidation in air. Properties The melting point of Sb2S3 is . The band gap is 1.88 eV at room temperature and it is a pho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Vein
In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation. Veins are classically thought of as being planar fractures in rocks, with the crystal growth occurring normal to the walls of the cavity, and the crystal protruding into open space. This certainly is the method for the formation of some veins. However, it is rare in geology for significant open space to remain open in large volumes of rock, especially several kilometers below the surface. Thus, there are two main mechanisms considered likely for the formation of veins: ''open-space filling'' and ''crack-seal growth''. Open space filling Open space filling is the hallmark of epithermal vein systems, such as a stockwork, in greisens or in certain skarn environments. For open space filling to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schist
Schist ( ) is a medium-grained metamorphic rock generally derived from fine-grained sedimentary rock, like shale. It shows pronounced ''schistosity'' (named for the rock). This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates. This texture (geology), texture reflects a high content of platy minerals, such as mica, talc, chlorite group, chlorite, or graphite. These are often interleaved with more granular minerals, such as feldspar or quartz. Schist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium Metamorphism#Metamorphic grades, grade of metamorphism. Schist can form from many different kinds of rocks, including sedimentary rocks such as mudstones and igneous rocks such as tuffs. Schist metamorphosed from mudstone is particularly common and is often very rich in mica (a ''mica schis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McKinley River
The McKinley River () is a 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. The river issues from Muldrow Glacier in the northern Alaska Range in Denali National Park and Preserve, northeast of Denali. It flows through the tundra north of the Alaska Range in a generally northwest direction, joining Birch Creek to form the Kantishna River near Chilchukabena Lake. The river was named ''McKinley Fork'' by A.H. Brooks in 1905. Other names or variants include ''Henteeth No' Tl'o'' and ''Hintusno' Dikats''. 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 stream order, Strahler method of stream classification, and an incomplete list of otherwise-notable rivers and streams. Alaska has more than 12,000 rivers, ... References Alaska Range Rivers of Denali Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Mining
Placer mining () is the mining of stream bed deposits for minerals. This may be done by open-pit mining or by various surface excavating equipment or tunneling equipment. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which are often found in alluvial deposits—deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial deposits. The metal or gemstones, having been moved by stream flow from an original source such as a vein, are typically only a minuscule portion of the total deposit. Since gems and heavy metals like gold are considerably denser than sand, they tend to accumulate at the base of placer deposits. Placer deposits can be as young as a few years old, such as the Canadian Queen Charlotte beach gold placer deposits, or billions of years old like the Elliot Lake uranium paleoplacer within the Huronian Supergroup in Canada. The containing material in an alluvial placer mine may be too lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prospecting
Prospecting is the first stage of the geological analysis (followed by Mining engineering#Pre-mining, exploration) of a territory. It is the search for minerals, fossils, precious metals, or mineral specimens. It is also known as fossicking. Traditionally prospecting relied on direct observation of mineralization in rock outcrops or in sediments. Modern prospecting also includes the use of geologic, Geophysics, geophysical, and Geochemistry, geochemical tools to search for anomalies which can narrow the search area. Once an anomaly has been identified and interpreted to be a potential prospect direct observation can then be focused on this area. In some areas a prospector must also stake a claim, meaning they must erect posts with the appropriate placards on all four corners of a desired land they wish to prospect and register this claim before they may take samples. In other areas publicly held lands are open to prospecting without staking a mining claim. Historical method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kantishna Airport
Kantishna Airport is a state-owned airstrip located two nautical miles (3.7 km) northwest of the former mining district of Kantishna in Denali National Park and Preserve, Alaska. As per Federal Aviation Administration records, the airport had 985 passenger boardings (enplanements) in calendar year 2008. This airport is included in the FAA's National Plan of Integrated Airport Systems for 2009–2013, which categorizes it as a ''general aviation'' facility. for 2009–2013 Appendix A: Part 1 (PDF, 1.33 MB) . Federal Aviation Administration. Updated 15 October 2008. |
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] |
Kantishna River
The Kantishna River (Lower Tanana: ''Khenteethno'') is a tributary of the Tanana River in the U.S. state of Alaska. Formed by the confluence of the McKinley River with Birch Creek in Denali National Park and Preserve, it drains part of the north slope of the Alaska Range including the Denali massif. The direction of flow is generally north-northeast. The Toklat River is a major tributary. Boating Boaters can float the Kantishna River and some of its tributaries in canoes, folding canoes and kayaks, or inflatable canoes and kayaks. Some trips begin at Lake Minchumina, run about down the Muddy River to Birch Creek, then downstream to the Birch–McKinley confluence (the source of the Kantishna) and then down the Kantishna to the Tanana. The entire trip is rated Class I (easy) on the International Scale of River Difficulty. Dangers include the possibility of dangerous winds on Minchumina Lake, as well as overhanging trees, stumps, and logs along the streams. Another tributar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wonder Lake (Alaska)
Wonder Lake is a lake located in Denali National Park and Preserve in Alaska. Wonder Lake is 2.6 miles (4.2 km) long and 280 feet (85 m) deep. The lake was excavated by the Muldrow Glacier approximately 14,000 years ago. The inflow and outflow channels of Wonder Lake are located side-by-side at the northern end of the lake. References {{authority control Lakes of Alaska Denali National Park and Preserve Tanana Athabaskans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
