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Alamo River
The Alamo River ( es, Río Álamo) flows west and north from the Mexicali Valley (Baja California) across the Imperial Valley (California). The river drains into the Salton Sea. The New River, Alamo River, and the Salton Sea of the 21st century started in autumn 1904, when the Colorado River, swollen by seasonal rainfall and snow-melt, flowed through a series of three human-engineered openings in the recently constructed levee bank of the Alamo Canal. The resulting flood poured down the canal and breached an Imperial Valley dike. The sudden influx of water and the lack of any drainage from the basin resulted in the formation of the Salton Sea; the rivers had re-created a great inland sea in an area that it had frequently inundated before, the Salton Sink. It took slightly less than two years (Mar 1905 to Feb 10, 1907) to control the Colorado River’s inflow to the Alamo Canal and stop the uncontrolled flooding of the Salton Sink, but the canal was effectively channelized wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holtville, California
Holtville (formerly, Holton) is a city in Imperial County, California. Holtville is located east of El Centro. The population was 5,939 at the 2010 census, up from 5,612 in 2000. History The city was founded in the 1880s by Swiss-German settlers, many of whom entered from Mexico. The construction of railroads in the 1890s, the All-American Canal in the late 1940s, and U.S. Route 80 in the 1920s (later converted to Interstate 8 in the 1970s) and the North American Free Trade Agreement (NAFTA) economic boom in the 1990s brought more people to Holtville and the Imperial Valley. The city of Holtville, which was originally called ''Holton'', was founded in 1903 by W.F. Holt, and incorporated on June 20, 1908. The name was changed to Holtville due to a request by the U. S. Postal Service because the name Holton sounded too much like Colton (in San Bernardino County), the regional headquarters of the Southern Pacific Railroad at the time. The name honors W.F. Holt, founder of the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Populus Fremontii
''Populus fremontii'', commonly known as Frémont's cottonwood, is a cottonwood (and thus a poplar) native to riparian zones of the Southwestern United States and northern through central Mexico. It is one of three species in ''Populus'' sect.'' Aigeiros''. The tree was named after 19th century American explorer and pathfinder John C. Frémont. Distribution The tree is native to the Southwestern United States and Mexico. In the United States, the species can be found in California, Idaho, Nevada, Utah, Arizona, New Mexico, Texas, and Colorado. In Mexico, it can be found in Baja California, Baja California Sur, Sonora, Chihuahua, Coahuila, Nuevo León, México (state), and Puebla. The riparian tree grows near streams, rivers, springs, seeps, wetlands, and well-watered alluvial bottomlands at elevations below elevation. Description ''P. fremontii'' is a large tree growing from in height with a wide crown, with a trunk up to in diameter. The bark is smooth when young, beco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Desert
California's Colorado Desert is a part of the larger Sonoran Desert. It encompasses approximately , including the heavily irrigated Coachella and Imperial valleys. It is home to many unique flora and fauna. Geography and geology The Colorado Desert is a subdivision of the larger Sonoran Desert encompassing approximately . The desert encompasses Imperial County and includes parts of San Diego County, Riverside County, and a small part of San Bernardino County, California, United States. Most of the Colorado Desert lies at a relatively low elevation, below , with the lowest point of the desert floor at below sea level, at the Salton Sea. Although the highest peaks of the Peninsular Ranges reach elevations of nearly , most of the region's mountains do not exceed . In this region, the geology is dominated by the transition of the tectonic plate boundary from rift to fault. The southernmost strands of the San Andreas Fault connect to the northernmost extensions of the East Pacif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brawley, California
Brawley (formerly, Braly) is a city in the Imperial Valley and within Imperial County, southern California, United States. The population was 24,953 at the 2010 census, up from 22,052 in 2000. The town has a significant cattle and feed industry, and hosts the annual Cattle Call Rodeo. Year-round agriculture is an important economic activity in Brawley. Summer daytime temperatures often exceed . History The Imperial Land Company laid out the town in 1902 and named it Braly in honor of J.H. Braly, who owned the land. After Braly refused to permit the use of his name, the name was changed to Brawley. The first post office at Brawley opened in 1903. Incorporated in 1908, it was a "tent city" of only 100 persons involved in railroads and the earliest introduction of agriculture. It had a population of 11,922 in 1950, but population growth was slow from the 1960s to the early 1990s. Geography Brawley is located in the Colorado Desert and Lower Colorado River Valley regions. The c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Valley
, photo = Salton Sea from Space.jpg , photo_caption = The Imperial Valley below the Salton Sea. The US-Mexican border runs diagonally across the lower left of the image. , map_image = Newriverwatershed-1-.jpg , map_caption = Map of Imperial Valley , coordinates = , location = California, United States , direction = Northwest-Southeast , length = , towns = Brawley, Calexico, El Centro, Imperial , traversed = Interstate 8, State Route 78, State Route 86, State Route 111 The Imperial Valley ( es, Valle de Imperial or ''Valle Imperial'') of Southern California lies in Imperial and Riverside counties, with an urban area centered on the city of El Centro. The Valley is bordered by the Colorado River to the east and, in part, the Salton Sea to the west. Farther west lies the San Diego and Imperial County border. To the north is the Coachella Valley region of Riverside County, which together with Imperial Valley form the Salton Trough, or the Cahuilla Basin, also the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributaries Of The Salton Sea
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean. The Irtysh is a chief tributary of the Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. PhysicalGeography.net, Michael Pidwirny & S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Imperial County, California
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Baja California
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Cahuilla
Lake Cahuilla ( ; also known as Lake LeConte and Blake Sea) was a prehistoric lake in California and northern Mexico. Located in the Coachella and Imperial valleys, it covered surface areas of to a height of above sea level during the Holocene. During earlier stages of the Pleistocene, the lake reached even higher elevations, up to above sea level. During the Holocene most of the water came from the Colorado River with little contribution from local runoff; in the Pleistocene local runoff was higher and it is possible that Lake Cahuilla was supported solely from local water sources during the Wisconsin glaciation. The lake overflowed close to Cerro Prieto into the Rio Hardy, eventually draining into the Gulf of California. The lake formed several times during the Holocene, when water from the Colorado River was diverted into the Salton Trough. This tectonic depression forms the northern basin of the Gulf of California, but it was separated from the sea proper by the growth o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Office Of Environmental Health Hazard Assessment
The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency ( CalEPA) with responsibility for evaluating health risks from environmental chemical contaminants. OEHHA is the scientific adviser within CalEPA and provides the health effects assessments that assist regulatory decision makers within CalEPA, the California Department of Public Health, and other agencies and non-governmental organizations (see below). This includes assessing health and environmental risks from: * Carcinogens * Reproductive toxins * Air pollutants * Pesticides * Chemical contaminants in food and water * Chemical exposures in the workplace * Climate change in California In the news Attempted closure In May 2009, Governor Arnold Schwarzenegger proposed to "eliminate and transfer the functions" of OEHHA (and other agencies) as part his May Revise for the 2009– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salton Sink
The Salton Sink is the low point of an endorheic basin, a closed drainage system with no outflows to other bodies of water, in the Colorado Desert sub-region of the Sonoran Desert. The sink falls within the larger Salton Trough and separates the Coachella Valley from the Imperial Valley, which are also segments of the Salton Trough. The lowest point of the sink is below sea level, and since 1906 the Salton Sea has filled the lowest portion of the sink to a water depth of up to . Geology The Salton Sink is the topographic low area within the Salton Trough, an active tectonic pull-apart basin. The Salton Trough is a result of crustal stretching and sinking by the combined actions of the San Andreas Fault and the East Pacific Rise. The Brawley seismic zone forms the southeast end of the basin and connects the San Andreas Fault system with the Imperial Fault Zone to the south. The Salton Buttes are rhyolite lava domes within the basin which were active 10,300 (± 1000) years BP. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niland, California
Niland (formerly Old Beach, Imperial Junction, and Hobgood) is a census-designated place (CDP) in Imperial County, California, United States. The town is located north of Calipatria, southeast of the Salton Sea. The population was 1,006 at the 2010 census, down from 1,143 in 2000. The 2020 census reported Niland's population at 756. By June 2020, however, after a major fire, the estimated population had diminished to 500. It is part of the El Centro, California Metropolitan Statistical Area. History The Old Beach post office operated from 1905 to 1907. The Imperial Junction post office opened in 1910, changed its name to Hobgood in 1913, and to Niland in 1914. The name Hobgood honors pioneer Richard H. Hobgood. The name Niland was coined by the Imperial Farm Lands Association from "Nile Land", a commendatory name for the supposed fertility of the place. From 1904 to 1960, Niland was the northern terminus of the Inter-California Railway. The community A visitor to Niland in 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
