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Encyclopedia :
D :
DE :
DEA :
Death Valley |
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Death Valley(NASA image)Death Valley is a deep arid basin in the northern Mojave Desert of southern California in the United States, extending for approximately 140 mi (225 km) along the California-Nevada border approximately 100 mi (160 km) west of Las Vegas. Famous for its brutal extremes of heat, the valley floor at Badwater Basin is the location of the lowest point in the Western Hemisphere (N36° 13.961' W116° 46.700'), at 282 feet (86 m) below sea level. The entire valley is located within Death Valley National Park. The valley is located southeast of the Sierra Nevada range in the Great Basin. It is bounded on the east by the Grapevine Mountains, Funeral Mountains, and Amargosa Range. It is bounded on the west by the Cottonwood Mountains and the Panamint Range. The geological configuration is considered one of the best examples of the Basin and Range configuration. The valley radiates extreme amounts of heat, allowing for temperatures that are among the hottest on earth. The hottest temperature recorded in the U.S., and the second hottest in the world, was 134°F (56.6°C) at Greenland Ranch near the valley on July 10, 1913. The valley receives less than 2 in (5 cm) of rain annually. The Amargosa River and Furnace Creek flow through the valley, disappearing into the sands of the valley floor. While there is very little rain in Death Valley, the valley is prone to flooding during heavy rains, because the soil is unable to absorb the bulk of the water. The runoff can produce dangerous flash floods. In August 2004 such flooding occurred, causing two deaths and shutting down the national park. During the late Pleistocene, the valley was indundated by prehistoric Lake Manly. The valley received its name in 1849 during the California gold rush by emigrants who sought to cross the valley on their way to the gold fields. During the 1850s, gold and silver were extracted in the valley. In the 1880s borax was discovered and extracted by mule-drawn wagons. For a detailed examination of the geology and other features of the valley, see Death Valley National Park Native populationDeath Valley is home to the Timbisha tribe, who have inhabited the valley for at least the past 1000 years. Some families still live in the valley at Indian Village. The name of the valley, tümpisa, means 'rock paint' and refers to the valley as a source of red ochre paint. Another village in the valley was located in Grapevine Canyon near the present site of Scotty's Castle. It was called maahunu, the meaning of which is uncertain although hunu means 'canyon'. See Timbisha Language. Composition and occurrence of salts in Death Valley(green crescent feature) at the far right, and the sand dunes near Stove Pipe Wells at the center. (NASA image)
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