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Old Bow And Old Ham Mines () is a biological Site of Special Scientific Interest in Gloucestershire, notified in 1998.〔(Natural England SSSI information on the citation )〕〔(Forest of Dean District Local Plan Review, adopted November 2005, Appendix D 'Nature Conservation Site Designations Within the Forest of Dean District', Sites of Special Scientific Interest )〕 ==Location and habitat== The mines comprise one of a series of Sites of Special Scientific Interest within the Forest of Dean and Wye Valley (Gloucestershire and Monmouthshire). These sites support (between them) important breeding and hibernation roosts for Lesser and Greater horseshoe bats. This is of European importance. Other sites in the group in Gloucestershire (all of which are SSSIs) include the breeding sites of Blaisdon Hall, Caerwood And Ashberry Goose House, Dean Hall Coach House & Cellar and Sylvan House Barn. Hibernation sites include Buckshraft Mine & Bradley Hill Railway Tunnel, Devil's Chapel Scowles, Westbury Brook Ironstone Mine and Wigpool Ironstone Mine.〔 A ring of iron-ore bearing Carboniferous Limestone in the Forest of Dean provides the focus of ancient and recent mines. These provide excellent hibernation sites for bats and the Old Bow and Old Ham mines are made up of a far-reaching area of underground workings. These are on the west side of the Forest of Dean and are near Clearwell. The notified site includes parts of four mine complexes being Clearwell, Old Bow, Lambsquay and Old Ham. There are inter-connections. There are entrances at the grilled (and padlocked where necessary) shafts at the edge of the outcrop. The length of the tunnels and workings is estimated to be some 30 kilometres.〔 The deciduous woodlands and sheltered valleys of the Forest of Dean and the Wye Valley provide a good feeding area. There are three units of assessment and unit 2 and unit 3 are woodland shelter areas on the western side.〔 The citations for the series of sites provide common information. 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「Old Bow and Old Ham Mines」の詳細全文を読む スポンサード リンク
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