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Croham Hurst is a 33.6 hectare (83.02 acre) biological Site of Special Scientific Interest (SSSI) and a Site of Metropolitan Importance for Nature Conservation in South Croydon in the London Borough of Croydon. Its SSSI designation is due to its importance for nature conservation, but it is also a Regionally Important Geological Site.〔(【引用サイトリンク】title=Croham Hurst )〕 The site is a steep hill, which is ancient woodland, although there are few very old trees because until the railways made cheap coal available, the timber was used for fuel. On the lower slopes there is a diverse community of plants dominated by oak and hazel on rich soils overlying chalk. Further up the trees are mainly beech on Thanet Sands, and towards the top the main trees are oak and birch on the acidic Blackheath pebble beds.〔(【引用サイトリンク】publisher=Natural England )〕〔(Croydon Online, Croham Hurst )〕 The Thanet Sands have eroded, but the Blackheath beds are bound by a natural cement, and this has resisted erosion to make a natural cap to the hill. The top is mainly bare of trees, with rounded pebbles made when the area was the base of shallow seas in the Eocene epoch around 50 million years ago. The sparse vegetation at the top is mainly wavy hair-grass, heather and bilberry.〔〔〔(Natural England, Greater London )〕 ==History== Its human occupation goes back thousands of years. In 1968 two hut sites were discovered with low turf walls, which were part of a Mesolithic settlement around 5,000 to 3,000 years BC. Neolithic flint tools show that settlement continued into the later Stone Age. There is also a Bronze Age round barrow, which is a Scheduled Ancient Monument, although the only visible evidence is a plaque marking the site.〔〔(English Heritage, Croham Hurst round barrow, List entry Number: 1002012 )〕 In the medieval period Croham was one of the four manors in the parish of Sanderstead. In the late sixteenth century its then owner, Sir Olliphe Leigh of Addington, sold it to John Whitgift, the Archbishop of Canterbury. Croham Hurst then became part of his Whitgift Foundation, an educational and nursing charity which is still operating today. In the late nineteenth century Croham Hurst became a popular spot for visitors, few of whom knew that it was not public property. They were shocked when it became known in 1898 that the Foundation wanted to sell the site, with the lower slopes being developed. Croydon people launched a vigorous campaign to save the site, which resulted in the whole of it being acquired by Croydon Corporation on 8 February 1901,〔 which became part of the London Borough of Croydon in 1965. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Croham Hurst」の詳細全文を読む スポンサード リンク
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