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Wheal Peevor
Wheal Peevor was a metalliferous mine located on North Downs about 1.5 miles north-east of Redruth, Cornwall, England. The first mining sett was granted here in around 1701 on land owned by the St Aubyn family. It was originally mined at shallow depths for copper, but when the price for that metal slumped after 1788, the mine was able to change to mining tin ore, which was found deeper down.〔(【引用サイトリンク】title=Redruth Mines - Wheal Peevor )〕 In the late 18th century Wheal Peevor had the advantage of being drained by the Great County Adit which was around 100 metres deep here.
In 1878 the mine was described as the ″surprise of Cornish mining″ because it was making a profit from tin while other Cornish mines were making a loss or closing. It was also described as a ″young mine″ indicating that it had recently re-opened. At that time the mine was employing 156 workers underground. The mine closed in 1889, almost 20 years after the price of tin was depressed due to the discovery of large, easily mined deposits in the Far East. Some exploratory work was undertaken on the site on several occasions in the 20th century, but no further ore was mined.〔
Since 2003 more than £800,000 has been spent on preserving the buildings on this derelict site, and it was opened to the public in January 2008.〔 The site is unusual because it contains the remains of three engine houses: the largest engine, with a 72 inch cylinder, was used for pumping water out of the mine; the second, used for winching material in and out of its shaft was at the eastern side of the sett; and the third with a 32 inch engine operated 48 heads of Californian stamps for crushing the ore.〔
==References==
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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