Leck Fell is a Site of Special Scientific Interest in Lancashire, England. An area of typically heavily grazed open moorland of rough grass and remnant patches of heather with little or no tree cover, it is characterised by the virtual absence of surface drainage and an extensive subterranean drainage network resulting in cave systems and numerous sinkholes.[2] It surrounds the high point of Gragareth 627 metres (2,057 ft) between Leck Beck and Kingsdale.[1]
This site consists of a network of cave systems and their catchment areas, with Ease Gill Caverns being the longest cave system in Britain. There are fourteen major sinkholes through which surface water enters the system, with water returning to the surface at Leck Beck Head. The botanical interest of the site is due to the underlying Carboniferous Limestone, which appears above ground as features such as crags, limestone pavements, gorges and potholes.[1] The pasturing of animals, along with changes in the climate in the later Bronze Age, contributed to deforestation of the open fell sides and the development of hill peat deposits.[2] The present landscape is dominated by long straight enclosure walls of late 18th or 19th century date.[2]
The 87-kilometre (54 mi) Three Counties System, which extends from Kingsdale to Barbondale, includes a number of important cave systems lying beneath Leck Fell. These include:
