Death Valley is a desert valley in Eastern California, in the northern Mojave Desert, bordering the Great Basin Desert. It is one of the hottest places on Earth, along with deserts in the Middle East and the Sahara.
Death Valley’s Badwater Basin is the point of lowest elevation in North America, at 282 feet (86 m) below sea level. It is 84.6 miles (136.2 km) east-southeast of Mount Whitney, the highest point in the contiguous United States, with an elevation of 14,505 feet (4,421 m). On the afternoon of July 10, 1913, the United States Weather Bureau recorded a high temperature of 134 °F (56.7 °C) at Furnace Creek in Death Valley, which stands as the highest ambient air temperature ever recorded at the surface of the Earth. This reading, however, and several others taken in that period, a century ago, are in dispute by some modern experts.
Death Valley is a graben—a downdropped block of land between two mountain ranges.[11] It lies at the southern end of a geological trough, Walker Lane, which runs north to Oregon. The valley is bisected by a right lateral strike slip fault system, comprising the Death Valley Fault and the Furnace Creek Fault. The eastern end of the left lateral Garlock Fault intersects the Death Valley Fault. Furnace Creek and the Amargosa River flow through part of the valley and eventually disappear into the sands of the valley floor.
Death Valley also contains salt pans. According to current geological consensus, at various times during the middle of the Pleistocene era, which ended roughly 10,000–12,000 years ago, an inland lake, Lake Manly, formed in Death Valley. The lake was nearly 100 miles (160 km) long and 600 feet (180 m) deep, the end-basin in a chain of lakes that began with Mono Lake, in the north, and continued through basins down the Owens River Valley, through Searles and China Lakes and the Panamint Valley, to the immediate west.
As the area turned to desert, the water evaporated, leaving an abundance of evaporitic salts, such as common sodium salts and borax, which were later exploited during the modern history of the region, primarily 1883 to 1907.
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