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Limestone Corner is an area of Hadrian's Wall (and associated defences) at its most northerly point, in present-day Great Britain. It represents the most northerly point of the Roman Empire, outside the two periods during which the Antonine Wall was occupied by the Roman military. Other notable features at Limestone Corner are the wall ditch at this point, which was never completely excavated, a Roman camp and the site of Milecastle 30. Also present is a trig point. The B6318 Military Road also runs through Limestone Corner, as does the Military Way, serving Milecastle 30. The Military Way is visible on the ground at this point, the most eastern point where this is the case.〔 The name Limestone Corner is not an official geographical name for the area and does not appear on official maps; the hill on which it stands is known as Teppermoor Hill. 'Limestone Corner' has become accepted through extensive usage.〔 〕 ==Geology== Despite the name, the rock in the area is not actually limestone; it is volcanic quartz-dolerite whinstone. Teppermoor Hill, on which Limestone Corner stands, is the eastern outlier of the Whin Sill.〔 Moving west along the escarpment, a glacial surface drift of boulder clay begins to overlay the whinstone. To the east, the whinstone lies just below the current turf line approximately as far as Turret 29A.〔 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「Limestone Corner」の詳細全文を読む スポンサード リンク
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