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Groom Lake (salt flat)
Groom Lake is a salt flat in Nevada used for runways of the Nellis Bombing Range Test Site airport (KXTA). It is located immediately north of the Area 51 USAF installation. The lake at elevation is approximately from north to south and from east to west at its widest point, and is approximately 11.3 miles in diameter.〔 Located within the namesake Groom Lake Valley portion of the Tonopah Basin, the lake is south of Rachel, Nevada.〔(DREAMLAND: Fifty Years of Secret Flight Testing in Nevada ) By Peter W. Merlin〕
The nearest civilian vantage point of Groom Lake is Tikaboo Peak, 26 miles to the east.
==History==
(詳細はMineral resources of the Pahranagat Range 30' by 60' quadrangle ), Joseph V. Tingley, Nevada Bureau of Mines and Geology, University of Nevada, Reno, 1989, retrieved 11 June 2010〕 and the English ''Groome Lead Mines Limited'' company financed the Conception Mines in the 1870s, giving the district its name (nearby mines included Maria, Willow and White Lake). The mining claims in Groom were acquired by J. B. Osborne and partners and patented in 1876, and Osborne's son acquired the interests in the 1890s. The claims were proved in 1916 when two companies began working their mines; that work continued until 1918, and resuming after World War II until the early 1950s.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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