Cassop Vale

Cassop Vale
Site of Special Scientific Interest
Cassop Vale
Country	England
Region	North East
District	Durham City

Location	NZ335387
- coordinates	GB-ENG 54°44′33.4″N 1°28′49.4″W / 54.742611°N 1.480389°W / 54.742611; -1.480389Coordinates: GB-ENG 54°44′33.4″N 1°28′49.4″W / 54.742611°N 1.480389°W / 54.742611; -1.480389

Area	40.9 ha (101.1 acres)

Notification	1958
Management	Natural England

Area of Search	County Durham
Interest	Biological

Location of Cassop Vale SSSI, Co Durham
Website: Map of site

Cassop Vale is a Site of Special Scientific Interest in the Durham City district of County Durham, England. It lies between the villages of Bowburn and Cassop, 7 km south-east of the centre of Durham..

The site is important as one of the larger areas of grassland developed on magnesium limestone. This rock has a restricted distribution in England and grassland associated with it is confined almost entirely to south-east Tyneside and County Durham, usually in small, scattered patches that are threatened by quarrying and modern agricultural practices.^[1]

Habitats at Cassop Vale include grassland, scrub, woodland and wetland, the last fed by spring-lines. The area also includes recolonised open quarries and mine spoil-heaps, which add to the floral diversity. Several rare and local species are present, including globeflower, Trollius europaeus, birds's-eye primrose, Primula farinosa, lesser club-moss, Selaginella selaginoides, and moonwort, Botrychium lunaria. The area also supports a diverse invertebrate fauna that includes populations of the Durham Argus butterfly, Aricia artaxerxes salmacis.^[1]

References

1 2 "Cassop Vale" (PDF). English Nature. 1985. Retrieved 18 July 2010.

Sites of Special Scientific Interest in County Durham

Backstone Bank and Baal Hill Woods Baldersdale Woodlands Bishop Middleham Quarry Bollihope, Pikestone, Eggleston and Woodland Fells Botany Hill Bowes Moor Bowlees and Friar House Meadows Brasside Pond Brignall Banks Burnhope Burn Butterby Oxbow Cassop Vale Castle Eden Dene Causey Bank Mires Charity Land Close House Mine Cornriggs Meadows Cotherstone Moor Crag Gill Crime Rigg and Sherburn Hill Quarries Dabble Bank Derwent Gorge and Horsleyhope Ravine Durham Coast Fairy Holes Cave Far High House Meadows Fishburn Grassland Foster's Hush Frog Wood Bog God's Bridge Grains o' th' Beck Meadows Green Croft and Langley Moor Greenfoot Quarry Hannah's Meadows Hawthorn Dene Hawthorn Quarry Hell Kettles Hesledon Moor East Hesledon Moor West Hexhamshire Moors Hisehope Burn Valley Hulam Fen Hunder Beck Juniper Kilmond Scar Low Redford Meadows Lune Forest Mere Beck Meadows Middle Crossthwaite Middle Side and Stonygill Meadows Middleton Quarry Middridge Quarry Moorhouse and Cross Fell Muggleswick, Stanhope and Edmundbyers Commons and Blanchland Moor Neasham Fen Newton Ketton Meadow Old Moss Lead Vein Park End Wood Pig Hill Pike Whin Bog Pittington Hill Pow Hill Bog Quarrington Hill Grasslands Railway Stell West Raisby Hill Grassland Raisby Hill Quarry Redcar Field Rigg Farm and Stake Hill Meadows Rogerley Quarry Sherburn Hill Shipley and Great Woods Sleightholme Beck Gorge - The Troughs Slit Woods Stony Cut, Cold Hesledon Teesdale Allotments The Bottoms The Carrs Thrislington Plantation Town Kelloe Bank Trimdon Limestone Quarry Tuthill Quarry Upper Teesdale Waldridge Fell West Newlandside Meadows West Park Meadows West Rigg Open Cutting Westernhope Burn Wood Wingate Quarry Witton-le-Wear Yoden Village Quarry

Neighbouring areas Cleveland Northumberland Tyne and Wear

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