climbers, particularly the largest, Dovestone Tor, which has about 50 different routes ranging from difficult to Extremely Severe; however, it is not as well used as the nearby Stanage Edge. Conservation Much of the moorland around Derwent Edge has been declared a Site of Special Scientific Interest (SSSI) because of its special vegetation and rare birds and animals, such as the Eurasian golden plover, red grouse, ring ouzel and mountain hare. Rare species of plants such as common cottongrass, mountain strawberry, and crowberry grow in the area. It has been proposed as a Special Protection Area for birds under a European Directive. The edge is part of the National Trust's High Peak Estate and visitors are free to roam at will but are urged to keep to established routes to avoid disturbing breeding birds. There are occasional times that the moors are closed for management purposes and grouse shooting – signs are posted at these times. Gallery References Bibliography External links National Trust page on Derwent / Howden Moors Hills and edges of South Yorkshire Mountains and hills of the Peak District Mountains and hills of Derbyshire Climbing areas of England Escarpments of England