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Pahranagat Valley
The Pahranagat Valley is a Tonopah Basin landform in Lincoln County, Nevada. The more fertile part of Pahranagat Valley is a narrow ribbon of green (no more than wide) like an oasis in the vast Nevada desert. It is approximately long running north and south and is watered by three large natural springs of water ( Hiko Springs, Crystal Springs and Ash Springs) and many smaller ones as well. It has four lakes, two near the north end of the valley (Nesbitt Lake and Frenchie Lake) and two towards the south end (Upper Pahranagat Lake and Lower Pahranagat Lake). The southern half of the valley including the two lakes is home to the Pahranagat Valley National Wildlife Refuge. Pahranagat Valley is bordered on the west by a range of mountains called the Mount Irish Range and then the Pahranagat Range. It is bordered on the east by the Hiko Range. State Route 318 and then U.S. Route 93 traverse the entire length of the valley. The more inhabited areas in Pahranagat Valley include ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valleys Of Lincoln County, Nevada
A valley is an elongated low area often running between hills or mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountains or polar areas. At lower latitudes and altitudes, these glacially formed valleys may have been created or enlarged during ice ages but now are ice-free and occupied by streams or rivers. In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In areas of limestone bedrock, dry valleys may also result from drainage now taking place underground rather than at the surface. Rift valleys arise principally from earth movements, rather than erosion. Many different types of valleys are described by geographers, using terms that may be global in use or else applied only locally. F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microtus Montanus
The montane vole (''Microtus montanus'') is a species of vole native to the western United States and Canada. Description Montane voles are medium-sized voles, with a total length of , including the tail. Adults typically weigh anything from , with males being slightly larger than females, but the actual weight varies considerably with age, geography, and subspecies. The upper body is covered with fur of a dark brownish shade, again with some variation between individuals. The fur is paler on the flanks, and fades to grey or white on the underparts. The tail exhibits the same color variation, with the fur being dark brown to almost black on the upper surface and grey or white below. Montane voles possess scent glands on the hips, near the anus, and on the male genitalia. These glands increase in size in response to testosterone, and are therefore particularly large in adult males. At least some of these glands produce unique fatty acid esters, that may function in species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenichthys Baileyi
The White River springfish (''Crenichthys baileyi'') is a species of fish in the family Goodeidae, the splitfins. It is a rare species of the Great Basin of western United States, where it is endemic to isolated warm springs in the White River drainage of eastern Nevada. Each side has two rows of dark blotches. The pelvic fins are entirely absent, while the anal fin is large, with 14 rays. The dorsal fin is set far back on the body, just above the anal fin, and is somewhat smaller than the anal fin, with 11 rays. Subspecies FishBase records five subspecies:Froese, R. and D. Pauly, Eds''Crenichthys''.FishBase. 2016. * ''Crenichthys baileyi albivallis'' J. E. Williams & Wilde, 1981 – Preston White River springfish * ''Crenichthys baileyi baileyi'' ( C. H. Gilbert, 1893) – White River springfish * ''Crenichthys baileyi grandis'' J. E. Williams & Wilde, 1981 – Hiko White River springfish * ''Crenichthys baileyi moapae'' J. E. Williams & Wilde, 1981 – Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinichthys Osculus
The speckled dace (''Rhinichthys osculus''), also known as the spotted dace and the carpita pinta, is a member of the minnow family. It is found in temperate freshwater in North America, from Sonora, Mexico to British Columbia, Canada. Canada is the northern limit of the speckled dace's distribution, and there it is found only in isolated parts of the Kettle and Granby Rivers. It is possible that, along with the Salish sucker (''Catostomus'' sp.), the speckled dace was one of the first fish to recolonize the rivers of British Columbia following the Ice Age. It is believed that spawning in Canada occurs once a year during the summer in fish older than two years. During breeding, many males often accompany a single female who broadcasts adhesive eggs over the gravelly stream bed. Each female produces between 200 and 500 eggs. Speckled dace are omnivorous, feeding upon filamentous algae and other plant material, bottom-dwelling aquatic insects and zooplankton. The speckled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Robusta
The roundtail chub (''Gila robusta'') is a cyprinid fish in the genus '' Gila'', of southwestern North America. It is native to the Colorado River drainage basin, including the Gila River and other tributaries, and in several other rivers. It is part of the “''robusta'' complex”, which includes the ''Gila robusta robusta'', ''G.r. grahami'', and ''G.r. seminuda.'' Description The body of the roundtail chub is significantly larger forward of the dorsal fin, and posteriorly it is tapered towards the tail. The forehead area is concave. The mouth is largish, but does not reach as far as the pupil of the eye, and is overhung by the snout. The tail is deeply forked. Color is a grayish brown above, and a lighter shade below. Mature males sometimes acquire red-orange lower cheeks and paired fins during breeding season. Roundtail chub can reach almost , but usually only grow to about . Recently, it has been recorded at up to 43 cm in length. Roundtail chub are also describe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bufo Nelsoni
The Amargosa toad (''Anaxyrus nelsoni'') is a species of toad in the family Bufonidae. It was at one time considered to be a subspecies of the western toad. It is threatened by habitat loss and is classified by the IUCN as being "Critically endangered". Etymology The specific name ''nelsoni'' honors Edward William Nelson, an American naturalist and ethnologist. Distribution and habitat The Amargosa toad is endemic to the Oasis Valley in the Amargosa Desert in Nye County, Nevada, United States. Its natural habitat is along a 10-mile (16 kilometre) stretch of the Amargosa River in the Oasis Valley between Springdale and Beatty, in tributary springs and in nearby isolated springs. The riverside growth consists of cottonwoods, sedges and cattails and breeding takes place in the springs where there is often little aquatic vegetation. Status The International Union for Conservation of Nature has assessed the status of the Amargosa toad as being "critically endangered". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluminicola Merriami
The Pahranagat pebblesnail also known as the Pahranagat Valley turban snail, scientific name ''Fluminicola merriami'', is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ... mollusk in the family Lithoglyphidae. This species is endemic to the United States. References Lithoglyphidae Gastropods described in 1892 Endemic fauna of the United States Taxonomy articles created by Polbot {{Lithoglyphidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alamo Bolide Impact
The Alamo bolide impact occurred 377–378 million years ago, when one or more hypervelocity objects from space slammed into shallow marine waters at a site that is now the Devonian Guilmette Formation of the Worthington Mountains and Schell Creek Range of southeastern Nevada; the event is named for breccias of metamorphosed crushed rock deposits, found near the town of Alamo, Nevada (the "Alamo Breccia"). This catastrophic impact event resulted in what is one of the best-exposed and has become the most accurately dated impact events; it occurred within the Frasnian age of the Devonian at about 377-378 Year#SI prefix multipliers, Ma, a moment in time that was about 5.9 Ma prior to the Late Devonian extinction, Frasnian/Famennian extinction events, which it is unlikely to have affected. The actual impact site has not yet been significantly documented—even its precise diameter and its internal structural features are not yet clear enough to make speculations on the mass and tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Las Vegas, Nevada
Las Vegas (; Spanish for "The Meadows"), often known simply as Vegas, is the 25th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County. The city anchors the Las Vegas Valley metropolitan area and is the largest city within the greater Mojave Desert. Las Vegas is an internationally renowned major resort city, known primarily for its gambling, shopping, fine dining, entertainment, and nightlife. The Las Vegas Valley as a whole serves as the leading financial, commercial, and cultural center for Nevada. The city bills itself as The Entertainment Capital of the World, and is famous for its luxurious and extremely large casino-hotels together with their associated activities. It is a top three destination in the United States for business conventions and a global leader in the hospitality industry, claiming more AAA Five Diamond hotels than any other city in the world. Today, Las Vegas annually ranks as one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
