Lune Forest is a

Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of ...

covering an extensive area of

moorland Moorland or moor is a type of habitat found in upland areas in temperate grasslands, savannas, and shrublands and montane grasslands and shrublands biomes, characterised by low-growing vegetation on acidic soils. Moorland, nowadays, generally ...

in the

Teesdale Teesdale is a dale, or valley, in Northern England. The dale is in the River Tees’s drainage basin, most water flows stem from or converge into said river, including the Skerne and Leven. Upper Teesdale, more commonly just Teesdale, falls ...

district of west

Durham Durham most commonly refers to: *Durham, England, a cathedral city and the county town of County Durham *County Durham, an English county *Durham County, North Carolina, a county in North Carolina, United States *Durham, North Carolina, a city in No ...

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

. In the north, where it adjoins the

Upper Teesdale Upper Teesdale is a Site of Special Scientific Interest (SSSI) in the west County Durham, England. It encompasses an extensive upland area that includes the headwaters of the River Tees and the surrounding catchment area upstream of the village ...

and

Appleby Fells Appleby Fells is a Site of Special Scientific Interest in the Eden district of Cumbria, England, near Appleby-in-Westmorland. The area is approximately a triangle with a right angle in the North East at Cow Green Reservoir. It extends westwards ...

SSSIs, it extends from

Mickle Fell Mickle Fell is a mountain in the Pennines, the range of hills and moors running down the middle of Northern England. It has a maximum elevation of . It lies slightly off the main watershed of the Pennines, about south of Cross Fell. After Cro ...

eastward almost as far as Harter Fell, above the hamlet of

Thringarth Thringarth is a hamlet in Lunedale, in the Pennines of England. It is Historic counties of England, traditionally located in the North Riding of Yorkshire but along with the rest of the former Startforth Rural District it was transferred to Coun ...

. Its southern limit is marked by the

River Balder The Balder is an English river that rises on the eastern slope of Stainmore Common in the Pennine Chain and flows eastwards for about 13 miles (21 km) to the River Tees at Cotherstone. The River Balder is in County Durham. The head of the ...

, upstream from

Balderhead Reservoir Balderhead Reservoir is a reservoir in Baldersdale, County Durham, England. It is one of a chain of three reservoirs on the River Balder, a tributary of the River Tees, which it joins at Cotherstone, about to the east. Balderhead Reservoir was ...

, where it shares a boundary with Cotherstone Moor SSSI to the south. Grains o' th' Beck Meadows and Close House Mine SSSIs are entirely surrounded by Lune Forest, but do not form part of it. The area has one of the most extensive areas of relatively undisturbed

blanket bog Blanket bog or blanket mire, also known as featherbed bog, is an area of peatland, forming where there is a climate of high rainfall and a low level of evapotranspiration, allowing peat to develop not only in wet hollows but over large expanses o ...

in northern England, as well as a number of upland habitats, including wet and dry

heath A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler ...

, acid

grassland A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur natur ...

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

grassland and

flushes Flushing is to become markedly red in the face and often other areas of the skin, from various physiological conditions. Flushing is generally distinguished, despite a close physiological relation between them, from blushing, which is milder, gene ...

. The predominant vegetation is blanket mire, in which heather, ''

Calluna vulgaris ''Calluna vulgaris'', common heather, ling, or simply heather, is the sole species in the genus ''Calluna'' in the flowering plant family Ericaceae. It is a low-growing evergreen shrub growing to tall, or rarely to and taller, and is found wid ...

'', and hare's-tail cottongrass, ''

Eriophorum vaginatum ''Eriophorum'' (cottongrass, cotton-grass or cottonsedge) is a genus of flowering plants in the family Cyperaceae, the sedge family. They are found throughout the arctic, subarctic, and temperate portions of the Northern Hemisphere in acid bog ha ...

'', are co-dominant. On higher ground, to the west, dwarf shrubs such as cloudberry, ''

Rubus chamaemorus ''Rubus chamaemorus'' is a species of flowering plant in the rose family Rosaceae, native to cool temperate regions, alpine and arctic tundra and boreal forest. This herbaceous perennial produces amber-colored edible fruit similar to the blackbe ...

'', and crowberry, ''

Empetrum nigrum ''Empetrum nigrum'', crowberry, black crowberry, or, in western Alaska, blackberry, is a flowering plant species in the heather family Ericaceae with a near circumboreal distribution in the Northern Hemisphere. It is usually dioecious, but there ...

'', are more frequent. Where steep slopes have inhibited

peat Peat (), also known as turf (), is an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The peatland ecosystem covers and is the most efficien ...

formation, the blanket mire gives way to dry heath, in which heather, wavy hair-grass, ''

Deschampsia flexuosa ''Deschampsia flexuosa'', commonly known as wavy hair-grass, is a species of bunchgrass in the grass family widely distributed in Eurasia, Africa, South America, and North America. Description Wavy hair-grass, ''Deschampsia flexuosa'', has wiry ...

'', and bilberry, ''

Vaccinium myrtillus ''Vaccinium myrtillus'' or European blueberry is a holarctic species of shrub with edible fruit of blue color, known by the common names bilberry, blaeberry, wimberry, and whortleberry. It is more precisely called common bilberry or blue whortle ...

'', are the dominant species. In the northern part of the site, areas where the underlying limestone outcrops at the surface, or has been cut into by small streams, are marked by bands of grassland, typically dominated by mat-grass, ''

Nardus stricta ''Nardus'' is a genus of plants belonging to the grass family, containing the single species ''Nardus stricta'', known as matgrass. It is placed in its own tribe Nardeae within the subfamily Pooideae. The name derives from ancient Greek ' () from ...

'', and with herbs such as heath bedstraw, ''

Galium saxatile ''Galium saxatile'' or heath bedstraw is a plant species of the genus ''Galium''. It is related to cleavers. ''Galium saxatile'' is a perennial mat-forming herb, found on grassland, moors, heaths and woods. It can reach a height of , and flowe ...

'', and tormentil, ''

Potentilla erecta ''Potentilla erecta'' (syn. ''Tormentilla erecta'', ''Potentilla laeta'', ''Potentilla tormentilla'', known as the (common) tormentil, septfoil or erect cinquefoil ) is a herbaceous perennial plant belonging to the rose family (Rosaceae). Descri ...

''. Where the limestone soils are thinner, a more species-rich grassland is found: wild thyme, ''

Thymus praecox ''Thymus praecox'' is a species of thyme. A common name is mother of thyme, but "creeping thyme" and "wild thyme" may be used where ''Thymus serpyllum'', which also shares these names, is not found. It is native to central, southern, and western ...

'', and selfheal, ''

Prunella vulgaris ''Prunella vulgaris'', the common self-heal, heal-all, woundwort, heart-of-the-earth, carpenter's herb, brownwort or blue curls, is a herbaceous plant in the mint family Lamiaceae. Self-heal is edible: the young leaves and stems can be eaten raw ...

'', are common, and in some places there are large populations of spring gentian, ''

Gentiana verna ''Gentiana verna'', the spring gentian, is a species of flowering plant in the family Gentianaceae, and one of its smallest members, normally only growing to a height of a few centimetres. The short stem supports up to three opposing pairs of e ...

'', a nationally rare species that is found nowhere else in Great Britain outside the Teesdale area. The area supports breeding populations of several important birds:

merlin Merlin ( cy, Myrddin, kw, Marzhin, br, Merzhin) is a mythical figure prominently featured in the legend of King Arthur and best known as a mage, with several other main roles. His usual depiction, based on an amalgamation of historic and le ...

short-eared owl The short-eared owl (''Asio flammeus'') is a widespread grassland species in the family Strigidae. Owls belonging to genus ''Asio'' are known as the eared owls, as they have tufts of feathers resembling mammalian ears. These "ear" tufts may or ...

and

Eurasian golden plover The European golden plover (''Pluvialis apricaria''), also known as the European golden-plover, Eurasian golden plover, or just the golden plover within Europe, is a largish plover. This species is similar to two other golden plovers: the America ...

are listed in Annex 1 of the European Commission's

Birds Directive The Birds Directive (formally known as Council Directive 2009/147/EC on the conservation of wild birds) is the oldest piece of EU legislation on the environment and one of its cornerstones which was unanimously adopted in April 1979 as the Dire ...

as requiring special protection, while

black grouse The black grouse (''Lyrurus tetrix''), also known as northern black grouse, Eurasian black grouse, blackgame or blackcock, is a large game bird in the grouse family. It is a sedentary species, spanning across the Palearctic in moorland and step ...

red grouse The red grouse (''Lagopus lagopus scotica'') is a medium-sized bird of the grouse family which is found in heather moorland in Great Britain and Ireland. It is usually classified as a subspecies of the willow ptarmigan but is sometimes consider ...

dunlin The dunlin (''Calidris alpina'') is a small wader, formerly sometimes separated with the other "stints" in the genus ''Erolia''. The English name is a dialect form of "dunling", first recorded in 1531–1532. It derives from ''dun'', "dull brown ...

Northern lapwing The northern lapwing (''Vanellus vanellus''), also known as the peewit or pewit, tuit or tew-it, green plover, or (in Ireland and Britain) pyewipe or just lapwing, is a bird in the lapwing subfamily. It is common through temperate Eurosiberia. ...

ring ouzel The ring ouzel (''Turdus torquatus'') is a mainly European member of the thrush family Turdidae. It is a medium-sized thrush, in length and weighing . The male is predominantly black with a conspicuous white crescent across its breast. Females ...

and

twite The twite (''Linaria flavirostris'') is a small brown passerine bird in the finch family Fringillidae. It is similar in size and shape to a linnet, at long. It lacks the red head patch and breast shown by the linnet and the redpolls. It is bro ...

are listed in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

's Red Data Book (Birds). The site is within the

North Pennines The North Pennines is the northernmost section of the Pennine range of hills which runs north–south through northern England. It lies between Carlisle to the west and Darlington to the east. It is bounded to the north by the Tyne Valley and ...

Area of Outstanding Natural Beauty An Area of Outstanding Natural Beauty (AONB; , AHNE) is an area of countryside in England, Wales, and Northern Ireland, that has been designated for conservation due to its significant landscape value. Areas are designated in recognition of thei ...

References

{{SSSIs County Durham Sites of Special Scientific Interest in County Durham