Imperial Valley

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Imperial Valley,

fertile region in the Colorado Desert, SE Calif., extending S into NW Mexico. Once part of the Gulf of California, most of the region is below sea level; its lowest point is −232 ft (−71 m) at the southern shore of the Salton SeaSalton Sea
, saline lake, 370 sq mi (958 sq km), northern part of the Imperial Valley, SE Calif.; 232 ft (71 m) below sea level. The area was anciently the northern part of the Gulf of California, but during the Pleistocene the Colorado River delta grew across the gulf, severing
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. Receiving only c.3 in. (7.6 cm) of rain annually, the valley experiences extremely high temperatures (115°F;/46°C;) and has a great daily temperature range. Having one of the longest growing seasons in the United States (more than 300 days), the valley can, with irrigation, support two crops a year; it was first irrigated in 1901. Several disastrous floods on the Colorado River in 1905–6 inundated the area, creating the Salton Sea; not until 1936, with the completion of Hoover Dam, was the valley safe from floods. Approximately 1 million acres (404,700 hectares) have been irrigated, chiefly by the All-American Canal. The valley is an important source of winter fruits and vegetables for the northern areas of the United States; cotton, dates, grains, and dairy products are also important. Brawley, Calexico, and El Centro, Calif., are the main U.S. cities in the valley; Mexicali, Mexico, also in the valley, is the center of Mexico's important cotton-growing district.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Imperial Valley


(Lower California Valley), lowlands in the United States and Mexico occupying an intermontane tectonic depression that is a continuation of the basin of the Gulf of California. The valley is filled by a thick layer of alluvial sediments from the Colorado River, which flows through the southern part of the valley. In the past the valley was often flooded by the waters of the Colorado, resulting in the formation of salt lakes—the Salton Sea (81 m below sea level) in the north and Laguna Salada in the west. The climate is dry and subtropical; the valley receives about 100 mm of precipitation annually. The vegetation is of the “woody” desert type and includes creosote bushes, large cacti, and arborescent yuccas. Some of the land between the Colorado River and the Salton Sea is irrigated; the principal crop is cotton.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Business leaders and politicians in Los Angeles were, of course, in favor of all commerce going through their city and building a road from California to Arizona that stayed north of the dunes, but leaders in San Diego, the Imperial Valley, and Yuma had other ideas.
This project is important to the Imperial Valley's future given the amount of abundant and reliable solar power that will be delivered to the region for decades to come, said 8minutenergy CEO and Founder, Martin Hermann.
In the stage of intensity 7 frequently earthquake, at the transverse input, the maximum displacement occurs at about 17.0 s, 8.5 s, and 35.0 s when synthesized, Imperial Valley, and Alaska earthquake input separately.
The hot climate and issues such as the salinity of the region's irrigation supply (drawn from the Colorado River) create a set of unique challenges for agriculture in the Imperial Valley. The search for ways to manage those challenges has forged strong links between researchers and the growers who work the valley's 500,000 acres of farmland.
In addition, the team is expanding the geographical research to include irrigation systems in Imperial Valley, Calif., and Maricopa, Ariz., thereby increasing the agricultural impact and relevance for more farmers.
Imperial Valley Press; 6,900; Imperial Valley News Media; Schurz Communications
The company is headquartered in Irvine, California with offices in Newport Beach, Pasadena, West Los Angeles, San Diego, Palm Desert and the Imperial Valley in California, in Las Vegas, Nevada and in Honolulu, Hawaii.
The Imperial Valley Press, a six-day, 7000-circulation paper in El Centro, Calif., and the White Sheets and the Green Sheets, were acquired earlier this month by Imperial Valley Media Inc.; no terms were given.
The District, the sixth largest utility in California, providing electric power to more than 145,000 customers in the Imperial Valley and parts of Riverside County, will also pay a $379,000 civil penalty.
California's Imperial Valley, a "stretch of desert between San Diego and Yuma, as far south and as far east as you could go in California," is the setting for this new novel from Johnny Shaw, bringing the return of Jimmy Veeder and his best friend, Bobby Maves, described by Jimmy as "an even split between Swiss and Mexican [who] favored Latin in his look, but identified as white.
For example, in "The Desert Series," discontentment is felt everywhere and is partially a side effect of the heat in the Imperial Valley. These poems are not only about the heat that the Imperial Valley residents labor under in order to survive but also how the heat is felt on the other side of the border.
TELECOMWORLDWIRE-March 25, 2014-ViaSpace signs king grass contract in Imperial Valley California

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