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Upper Las Vegas Wash
Las Vegas Wash is a 12-mile-long channel (an "arroyo" or "wash") which feeds most of the Las Vegas Valley's excess water into Lake Mead. The wash is sometimes called an ''urban river'', and it exists in its present capacity because of an urban population. The wash also works in a systemic conjunction with the pre-existing wetlands that formed the oasis of the Las Vegas Valley. The wash is fed by urban runoff, shallow ground water, reclaimed water used on parks and golf courses, and stormwater. The wetlands of the Las Vegas Valley act as the kidneys of the environment, cleaning the water that runs through it. The wetlands filter out harmful residues from fertilizers, oils, and other contaminants that can be found on the roadways and in the surrounding desert. Near its terminus at Las Vegas Bay, the wash passes under the man made Lake Las Vegas through two 7-foot pipes. History Before development in the valley above the wash, it was able to contain the flows from rain water th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frenchman Mountain
Frenchman Mountain is a mountain located east of Las Vegas, Nevada. Made up of rocks similar to those found on the bottom of the Grand Canyon, Frenchman Mountain formed when Fault (geology), faulting elevated and tilted the rocks followed by erosion, giving it its sharp triangular profile. The mountain provides an example of the Great Unconformity with the tilted Paleozoic Tapeats Sandstone underlain by Paleoproterozoic Vishnu Schist, which is some of the oldest rock on the North American continent, having been created about two billion years ago. The peak lies on a north to north-northeast trending ridge about 2000 feet above the nearby valleys. Sunrise Mountain (Nevada), Sunrise Mountain lies to the northeast adjacent to Nellis Air Force Base. The north end of the McCullough Range about to the south has a parallel trend. The River Mountains lie to the southeast. Nevada State Route 147, State Route 147 crosses its northern slope. A geologically rich area called Rainbow Garde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Las Vegas
Lake Las Vegas in Henderson, Nevada, refers to a reservoir and the developed area around the reservoir. The area is sometimes referred to as the ''Lake Las Vegas Resort''. It is being developed by 5 companies including Lake at Las Vegas Joint Venture LLC. The area includes three resorts including the Aston MonteLago Village Resort, the Westin Lake Las Vegas Resort, and the Hilton Lake Las Vegas. Overview The earthen impoundment that forms the reservoir is tall, in length, and wide at its base. It contains roughly the same amount of dirt as Hoover Dam does concrete, and impounds of water. Since the reservoir was built in the channel of the Las Vegas Wash — the valley's only storm runoff outlet — A bypass was built for the wash beneath the reservoir and dam allowing it to remain connected to Lake Mead via two diameter pipes. The bypass is a flood control measure, allowing flood waters to be diverted under the reservoir into Lake Mead with the rest absorbed by La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tributaries Of The Colorado River
The principal tributaries of the Colorado River of North America are the Gila River, the San Juan River, the Green River, and the Gunnison River. Tributary tree The following is a tree demonstrating the points at which the major and minor tributaries of the Colorado River branch off from the main river and from each other. *(Source-upstream) ** Fraser River ** Muddy Creek ** Blue River *** Snake River *** Tenmile Creek ** Piney River ** Eagle River *** Gore Creek **Roaring Fork River *** Fryingpan River *** Crystal River ** Plateau Creek **Gunnison River ***East River **** Slate River *** Taylor River *** Tomichi Creek **** Cochetopa Creek **** Quartz Creek ***Lake Fork Gunnison River **** Henson Creek ***Uncompahgre River *** Smith Fork ***North Fork Gunnison River ** Little Dolores River **Dolores River *** West Dolores River *** San Miguel River **Green River *** Big Sandy River *** Blacks Fork *** Henry's Fork ***Sheep Creek *** Carter Creek *** Cart Creek *** Crouse Creek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clark County Wetlands Park
The Clark County Wetlands Park is the largest park in the Clark County, Nevada park system. The park is on the east side of the Las Vegas valley and runs from the various water treatment plants near the natural beginning of the Las Vegas Wash to where the wash flows under Lake Las Vegas and later into Lake Mead. One purpose of the park is to reduce the environmental impact of the waste water and stormwater runoff leaving the drainage basin area, by building a constructed wetland. This is being accomplished by installing a series of water flow control structures such as dams and weirs and by creating ponds that together slow down the flow of the water, catching silt, and reducing the undercutting of the dirt walls that form the wash. As of June, 2005 nine of these structures were operational. The sides of the wash are being stabilized by installing native plants and large pieces of demolished construction debris. Some of the native plants, especially those in areas of standing w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tule Springs
Tule Springs is one of the larger urban retreats in Las Vegas, Nevada, and the Las Vegas Valley. It is a significant desert ecosystem consisting of a series of small lakes that formed an oasis in this area of the Mojave Desert. Both the springs and the ranch are located within the Floyd Lamb Park at Tule Springs which is operated by the City of Las Vegas. Tule Springs Ranch Tule Springs Ranch and the associated buildings are listed as a district on the United States National Register of Historic Places and located within this area. The ranch district was listed on the National Register of Historic Places on September 23, 1981. Tule Springs Archaeological Site The area was home to numerous Native American visitors in the pre-Columbian period. More recently, it served as a guest ranch for out-of-state residents seeking to "live" in Nevada and gain access to its easy divorce requirements. Several of the ranch's buildings remain, as do a few peacocks. The springs archeologic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brassica Tournefortii
''Brassica tournefortii'' is a species of plant known by the common names Asian mustard, pale cabbage, African mustard, and Sahara mustard, and is well known as an invasive species, especially in California. The plant is generally similar to other mustards, but the yellow flowers are not as bright and flashy as closely related species. It is a spreading annual herb with long stems up to in length. Description This mustard is native to the deserts of North Africa and the Middle East. It became notorious during the twentieth century after it invaded the deserts of the United States and Mexico. Recently it has become an abundant weed of low deserts including the Sonoran and Mojave Deserts, plus the desert valleys such as the Coachella and Imperial Valleys of southern California.Dremann, Craig. 2005. California desert and adjacent States Megatransect Survey for the Saharan Mustard, mile-by-mile. Notebooks 192-197 unpublished. http://www.ecoseeds.com/mustards.html. The plant disp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamarisk
The genus ''Tamarix'' (tamarisk, salt cedar, taray) is composed of about 50–60 species of flowering plants in the family Tamaricaceae, native to drier areas of Eurasia and Africa. The generic name originated in Latin and may refer to the Tamaris River in Hispania Tarraconensis (Spain). Description They are evergreen or deciduous shrubs or trees growing to in height and forming dense thickets. The largest, ''Tamarix aphylla'', is an evergreen tree that can grow to tall. They usually grow on saline soils, tolerating up to 15,000 ppm soluble salt, and can also tolerate alkaline conditions. Tamarisks are characterized by slender branches and grey-green foliage. The bark of young branches is smooth and reddish brown. As the plants age, the bark becomes gray-brown, ridged and furrowed. The leaves are scale-like, almost like that of junipers, 1–2 mm (1/20" to 1/10") long, and overlap each other along the stem. They are often encrusted with salt secretions. The pink to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Polishing
A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools. Methods of filtration Filters use sieving, adsorption, ion exchanges, biofilms and other processes to remove unwanted substances from water. Unlike a sieve or screen, a filter can potentially remove particles much smaller than the holes through which its water passes, such as Nitrates or germs like '' Cryptosporidium.'' Among the methods of filtration, notable examples are sedimentation, used to separate hard and suspended solids from water and activated charcoal treatment, where the boiled water is poured through a piece of cloth to trap undesired residuals. Additionally, the use of machinery to work on desalinization and purific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migratory Bird
Bird migration is the regular seasonal movement, often north and south along a flyway, between Breeding in the wild, breeding and wintering grounds. Many species of bird migrate. Animal migration, Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, European turtle dove, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greece, Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and Animal migration tracking#Satellite tracking, satellite tracking to trace migrant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southwest United States
The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California, Colorado, Nevada, Oklahoma, Texas, and Utah. The largest cities by metropolitan area are Phoenix, Las Vegas, El Paso, Albuquerque, and Tucson. Prior to 1848, in the historical region of Santa Fe de Nuevo México as well as parts of Alta California and Coahuila y Tejas, settlement was almost non-existent outside of Nuevo México's Pueblos and Spanish or Mexican municipalities. Much of the area had been a part of New Spain and Mexico until the United States acquired the area through the Treaty of Guadalupe Hidalgo in 1848 and the smaller Gadsden Purchase in 1854. While the region's boundaries are not officially defined, there have been attempts to do so. One such definition is from the Mojave Desert in California in the west (117° west longitude) to C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
