In England, Sites of Special Scientific Interest (SSSIs) are designated by Natural England, which is responsible for protecting England's natural environment. Designation as an SSSI gives legal protection to the most important wildlife and geological sites.[4] As of May 2018, there are 98 sites designated in Kent.[5] There are 21 sites which have been designated for their geological interest, 67 for their biological interest, and 10 for both reasons.
This site has unimproved neutral grassland, which is a nationally rare habitat. Some of it has been lost to scrub, but in other areas it is maintained by rabbit grazing. There are several uncommon butterflies, including the nationally scarce pearl-bordered fritillary and small pearl-bordered fritillary.[7]
This site is composed of several steeply sloping woods on chalk soil, together with an area of chalk grassland. The ground flora is diverse, including some unusual plants such as lady orchid in the woods and burnt orchid in the meadow.[10]
This Pleistocene site has an extensive section through gulls (cracks in the rock) which are filled with loess. These were probably produced by seasonal freezing and thawing during the last ice age.[13]
This Pleistocene site in the terrace of the River Medway has yielded many mammalian bones and paleolithic artefacts, but its geographical isolation from the main Thames sequence makes precise correlation of Aylesford rocks with those laid down at the same time in Thames sites uncertain.[16]
This internationally renowned site has yielded the largest number of stone tools and flakes in Britain dating to the Early Middle Paleolithic (325,000 to 180,000 year ago). Most of them were produced by Neanderthals using the Levallois technique.[19][20]
The River Bourne runs through a shallow valley, and frequent flushing of the woodland on the banks with water rich in nutrients creates a rich ground flora. There is also an area of swamp around a fish pond.[22]
This steeply sloping site has mature beech and oak, and the ground flora is varied with some uncommon species. Invertebrates include the rare slug Limax tenellus and several scarce moths.[26]
This site has diverse habitats, including ancient semi-natural woodland, grassland and scrub. There are nationally important numbers of nightingales in the woods and scrub during the breeding season, and invertebrates include nationally scarce moths.[28]
This site includes Fordwich Pit, which has yielded a large collection of early Acheulianhandaxes, between 550,000 and 300,000 old. Habitats include alder wood in a valley bottom, acidic grassland on dry sandy soil, oak and birch woodland, scrub and a pond.[31][32]
These woods are partly on acidic Thanet Sands and partly on chalk soils. There is also an area of arable land which has some uncommon plants, including the very rare and protected rough marsh-mallow, which has been recorded on the site since 1792.[43]
Much of this ancient wood has traditionally been coppiced, but there has probably been undisturbed woodland on steep slopes, and uncommon bryophytes here are thought to be survivors from the Atlantic warm period around 5,000 years ago. There are also several nationally scarce water beetles.[46]
This is unimproved neutral grassland, which is a nationally rare habitat, and it is grazed to prevent scrub invading the pasture. Grasses include crested dog's tail and common knapweed, and an area of wet grassland by a stream has jointed rush and water mint.[51]
The farm shows mass movement of rock and soil on a shallow 8% slope of London Clay, which is seen in ridges across the site. It may be the lowest angled slope failure in Britain, and is important in demonstrating slope degradation where there is no coastal erosion.[54]
This ancient semi-natural wood has many rare invertebrates, including thirty-two which are nationally scarce and two which are nationally rare: these are beetles which live in dead and dying oak timber, Grilis pannonicus and Platypus cylindricus.[56]
The cliffs expose fossiliferous rocks dating to 99 and 86 million years ago, during the Late Cretaceous, which are historically important as many geological principles were tested there. The cliffs have many breeding sea birds, and there are diverse algae on the foreshore.[61]
This sloping chalk meadow has the nationally endangered black-veined moth and twenty-eight species of butterfly, including the nationally scarce Duke of Burgundy. Grassland flora include two nationally scarce species, small bedstraw and man orchid.[63]
This former quarry exposes rocks dating to the Aptian stage in the early Cretaceous, around 120 million years ago. It is famous for its rich and diverse brachiopod and bivalve fossils, which are important for palaeoecological research.[67]
Nationally important habitats in this site are saltmarsh, sand dunes, vegetated shingle, saline lagoons, standing waters, lowland ditch systems, and basin fens, and it has many rare and endangered species of fauna and flora. It is geologically important as its deposits display the chronology of coastal evolution.[77]
This site has mixed coppice with some mature oaks. Insects include the rare and protected heath fritillary butterfly, and there is a wide variety of woodland birds.[80]
This wood has diverse flora with over 250 species of vascular plants and 300 of fungi. Insects include 3 species which are nationally rare, and there are mammals such as wood mice, dormice and two species of shrew.[83]
This wood has a variety of soil conditions, resulting in diverse ground flora and invertebrates, some of which are typical ancient woodland. Ponds in the middle support several species of amphibian, and the nationally rare hoverfly Volucella inanis has been recorded on the site.[86]
These chalk cliffs have several nationally rare plants and they provide a location for cliff nesting and wintering birds. The SSSI also contains two internationally important reference sites for study of the Cretaceous period.[99]
This site is mainly marshy grassland, but it also has a stream, a pond and small areas of bog and dry acidic grassland. It is notable for its invertebrates, especially moths.[101]
This semi-natural wood is more than 400 years old, and it has rich and diverse invertebrates, including 12 rare or scarce dead wood species, such as the nationally rare beetle, Tomoxia biguttata.[116]
This site is controversial as it exposes the Lenham Beds, the date of which have been disputed, but they are now thought to be Pliocene on the basis of their marine bivalves and gastropods.[119]
This site has species-rich acidic grassland which is the remnant of a larger deer park, and is still managed by a herd of deer. There are also ancient pollard woods which are the richest for epiphytic lichens in the county. Several ponds have adjacent areas of marsh.[122]
This Pleistocene site is described by Natural England as "a key geomorphological site for sandstone weathering features developed on the highest cliffs in the Weald". The Ardingly Sandstone has micro-cracking of unknown origin.[125]
This oak and hornbeam wood is outstanding for its insects, especially butterflies and moths, with two which are nationally rare, the broad-bordered beehawk and black-veined moths. There are diverse breeding birds.[127]
This site is in the tidal flood plain of the River Medway. It has diverse habitats, with reedbeds, fen, grassland, woodland, scrub and a flooded gravel pit, which attracts wintering wildfowl. There are five rare invertebrates, including three bee species.[130]
This site has areas of heath and the best valley bog in the county, both habitats which are uncommon in Kent. Over a thousand insect species have been recorded, several of which are nationally rare, such as the bee Lasioglossum semilucens and the cranefly Tipula holoptera.[136]
This site has a sequence of deposits covering the end of the last glacial period, with two sheets of glacial deposits separated by a fossil soil assigned to the late glacial interstadial around 13,000 years ago. It provides evidence of lithostratigraphic and biostratigraphic changes during this period.[139]
The park has acidic woodland, parkland, woods and ponds. It has the best ancient woodland invertebrates in the county, including the nationally rare beetle Platypus cylindrus and several nationally scarce species, and it also has a rich fungus flora.[146]
This site has been assigned to the Pliocene on the basis of its gastropod, bivalve and serpulid worm fossils. It is important because there are few exposures dating from this period in Britain.[153]
Some of the pollards in this wood are over 400 years old, and it is important for invertebrates, lichens, breeding birds and fungi. Over 340 beetle species have been recorded, including two which are nationally rare.[156]
This site has some of the richest chalk downland in the county. The invertebrate community is outstanding, including butterflies such as marbled whites, adonis blue and the very rare silver-spotted skipper.[158]
This steeply sloping site has woodland and grassland on Kentish ragstone, with many springs and flushes at the base. It is close to the sea, and the resulting high humidity allows plants such as stinking iris, which are usually confined to woods, to grow in grassland.[164]
This steeply sloping area of chalk grassland has diverse herb flora, including the nationally rare Kentish milkwort and seven species of orchid, such as the scarce man orchid. There are also areas of woodland and scrub.[168]
These unimproved neutral meadows are cut for hay each year and then grazed. There are also ponds and hedgerows which are probably of ancient origin, and trees include midland hawthorns and wild service-trees.[171]
This site is internationally important for its wintering birds, and nationally important for its breeding birds. It is also has an outstanding flora, such as the nationally rare oak-leaved goosefoot and the nationally scarce slender hare's-ear.[176]
This site has mixed woodland, scrub, ponds, grassland and bracken. It has the largest heronry in Britain, with more than 200 pairs, and insects include the scarce sloe carpet and least carpet moths.[181]
This site provides the best example of a very unusual topography, with cracking and tilting of underlying weaker strata during the Pleistocene by periglacial processes producing crests and troughs in the surface rocks.[184]
More than 250 species of fungi have been recorded in this site, including 10 which are rare or scarce. There are also molluscs which are characteristic of ancient woodland, including the rare snail Phenacolumax major and the scarce slug Limax tenellus.[186]
This site has mixed woodland on the Lower Greensand, some of it of ancient origin. The habitats are varied, including acidic soils on Bitchet Common and damp, base-rich soils in Martins Wood. There are several rare plants and invertebrates.[189]
This site is described by Natural England as "an important invertebrate locality of national significance". Hundreds of invertebrate species have been recorded, including 39 which are nationally rare and 134 which are nationally scarce. Several are only known in Britain on this site.[192]
These downs have woodland, scrub and species-rich chalk grassland, which has been traditionally managed by grazing. A decline in grazing has caused the chalk downland to become overgrown, but it is still very species diverse, with over a hundred plants recorded.[195]
This quarry exposes rocks dating to the Cretaceous period, and shows the contact between the Hythe and Sandgate beds. It is very rich in fossil ammonites, with species which can be correlated elsewhere.[198]
This downland site has grassland which is grazed by sheep and cattle on the lower slopes and dense scrub on the upper ones. There are a variety of orchids including the uncommon lady and musk orchids.[204]
The field layout of this farm is believed to have remained unchanged for over 700 years. The hedges and meadows have a rich variety of flora, with at least 19 species of grasses.[216]
This chalk downland site has herb-rich grassland, scrub and woods. Flora include the nationally rare Kentish milkwort and several uncommon orchids.[221]
This site has dry grassland and woodland on a south facing slope. It has two rare plants, early spider orchid and meadow clary, and a rich variety of insects.[228]
This is a deep valley along a stream in the Weald, and has the humid conditions typical of such areas. It has a diverse flora of mosses, ferns and liverworts, and woodland which is thought to date back to recolonisation after the last ice age ended 11,700 years ago.[232]
This Quaternary site is important for its examples of sandstone weathering, especially Toad Rock, which stands on a narrow base moulded by periglacial wind erosion.[235]
This site has over 30 plant species and 168 invertebrates which are nationally rare and nationally scarce, and several wintering birds are present in nationally important numbers. It is also a geologically important site, with diverse fish fossils dating to the Thanetian around 57 million years ago.[247]
This site has parkland, grassland, woodland. There are dormice, a protected species, and several nationally scarce invertebrates, such as Rolph's door snail. There are man-made ponds and a moat.[252]
The main biological interest of this site lies in the sixty-seven species of cranefly which have been recorded in areas of alder carr and fen. Four are nationally scarce, including Erioptera limbata, which is only known on two other British sites, and there are also fourteen other nationally scarce invertebrate species.[254]
This site has flooded gravel pits which have a variety of breeding and wintering birds. There are thirteen species of dragonfly, and there are also areas of reedbeds and woodland.[257]
This site exposes EoceneLondon Clay with well preserved fossil fauna and flora, which have been studied since the eighteenth century. Flora include tropical lianas. The site is botanically important for the nationally rare dragon's teeth.[264]
These woods have diverse and important invertebrates, especially dragonflies, beetles and true bugs, including the rare beetles Mordella holomelaena and Peltodytes caesus. Several clay workings have been landscaped to create shallow ponds designed for wildlife.[266]
This wood is mainly sweet chestnut coppice, and the importance of the site lies in the number of rare plants found in its rides. It is the most eastern locality in Britain for ivy-leaved bellflower.[268]
Over 20,000 waterfowl use this site, and some species are present in internationally important numbers. There are nationally scarce plants on dykes, and the diverse invertebra include nationally rare beetles, flies and true bugs.[273]
This site exposes loess, probably dating to the glacial Wolstonian Stage between 352,000 and 130,000 years ago. It contains the fossils of land snails, and as loess in Britain is usually unfossiliferous, it is one of the few sites where loess fauna can be studied.[280]
This site has flooded gravel pits, scrub, reed beds, grassland and alder carr, with a diverse flora and fauna. Several scarce moths have been recorded and two rare birds, cetti's warbler and the bearded tit, breed in nationally significant numbers.[287]
This former gravel quarry has yielded many hand axes of Middle Acheulian style from the third terrace of the River Stour. It is important for understanding the chronologies of the terraces of the Thames basin in the Pleistocene.[290]
This site has mudflats, saltmarsh and fresh water marsh. It has many wildfowl and waders, including internationally important numbers of teal, wigeon and grey plover. The Swale also has a rich variety of invertebrates and plants.[298]
The large stone in the photograph marks the place where in 1935 dentist Alvan Marston found the first Lower Paleolithic human fossil in Britain. It is part of the skull of a 400,000 year old early Neanderthal woman, and is one of only two British sites to have yielded human remains from this early period.[303][304]
This north facing slope has a population of tall herbs, including the largest population in Britain of hog's fennel, a nationally rare umbellifer. Fauna include Agonopterix putridella, a nationally rare moth whose larvae feed exclusively on hog's fennel.[307]
This site has unstable cliffs and foreshore, saltmarsh, lagoons, woodland and grassland. It has internationally important numbers of wintering birds and three nationally rare invertebrates. It is also an important Palaeocene site and paleobotanical locality.[311]
This site contains typical woodland on Tertiary deposits, and sandy areas which have diverse invertebrates, including seven nationally rare bees and wasps. Upnor Quarry exposes a complete sequence of Tertiary rocks.[315]
This site contains tufa which displays a complete sequence of molluscs, especially terrestrial snails, dating to the early Holocene, and thus gives a full record of the order in which species colonised the area after the end of the last ice age, the Younger Dryas.[325]
These woods have more than fifty species of breeding birds, and the diverse invertebrate fauna include five nationally rare and thirteen nationally scarce species. There is also a population of the declining and protected hazel dormouse.[328]
This ancient oak wood on Gault Clay is traditionally managed, and it has a diverse ground flora and an outstanding range of breeding birds. The insect fauna is also diverse, and 77 bryophyte and nearly 300 fungus species have been recorded.[332]
This stretch of chalk escarpment has woodland, unimproved grassland and scrub. Plants include the nationally rare meadow clary and there are several scarce invertebrates. There are many Mesozoic fossil fishes in an excellent state of preservation.[341]
This site has a variety of habitats, including grassland, calacreous fen meadow, scrub, dry woodland on chalk and wet alder woodland. The Devil's Kneading Trough, found within the site, is an important geological site displaying periglacial changes dating to the late glacial period.[349]
This sloping site has woodland on dry chalk soils with diverse woodland breeding birds. The ground flora, dominated by bluebells, also contains many orchids.[352]
^"Alex Farm Pastures citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 25 February 2018.
^"Allington Quarry citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 24 May 2018. Retrieved 23 April 2018.
^"Aylesford Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 24 May 2018. Retrieved 23 April 2018.
^"Bourne Alder Carr citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 30 January 2018.
^"Brookland Woodcitation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 30 January 2018.
^"Charing Beech Hangers citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 30 January 2018.
^"Church Woods, Blean citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 31 January 2018.
^"Cobham Woods citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 14 January 2018.
^"Combwell Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 1 February 2018.
^"Cowden Meadow citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 12 March 2018.
^"Cowden Pound Pastures citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 12 March 2018.
^"High Halstow (Mass movement)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Dalham Farm citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 14 January 2018.
^"Darenth Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 1 February 2018.
^"Down Bank citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 2 February 2018.
^"Dryhill (Aptian-Albian)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Dryhill". Local Nature Reserves. Natural England. Retrieved 12 January 2018.
^"Dryhill citation". Sites of Special Scientific Interest. Natural England. Retrieved 2 February 2018.
^"East Blean Woods citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 5 February 2018.
^"Ellenden Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 5 February 2018.
^"Farningham Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 5 February 2018.
^"Folkestone Warren (Mass movement)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Folkestone (Aptian-Albian)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 6 February 2018.
^"Folkestone Warren citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 6 February 2018.
^"Gibbin's Brook citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 6 February 2018.
^"Great Crabbles Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 6 February 2018.
^"Sevenoaks (Aptian-Albian)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Greatness Brickworks citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 12 March 2018.
^"Ham Street Woods citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 7 February 2018.
^"Hart Hill, (Neogene)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Hart Hill citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 17 February 2018.
^"Hatch Park". Historic England. Archived from the original on 8 February 2018. Retrieved 7 February 2018.
^"Hatch Park citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 7 February 2018.
^"High Rockscitation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 8 February 2018.
^"Hoad's Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 8 February 2018.
^"Hollingbourne Downs citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 12 February 2018.
^"Hothfield Common". Local Nature Reserves. Natural England. Retrieved 15 January 2018.
^"Hothfield Common citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 12 February 2018.
^"Hubbard's Hill citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 13 February 2018.
^"Ileden and Oxenden Woods citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 13 February 2018.
^ ab"Knole Park citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 14 February 2018.
^"Knole". National Trust. Archived from the original on 22 January 2018. Retrieved 16 January 2018.
^"Larkey Valley Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 14 February 2018.
^"Pivington Quarry, Lenham (Neogene)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Lenham Quarry citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 17 February 2018.
^"Lullingstone Park citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 15 February 2018.
^"Lympne Escarpment citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 16 February 2018.
^"Lynsore Bottom citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 18 February 2018.
^"Magpie Bottom citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 18 February 2018.
^"Marden Meadows citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 12 March 2018.
^"Northward Hill". Royal Society for the Protection of Birds. Retrieved 19 February 2018.
^"Northward Hill citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 19 February 2018.
^"Oaken Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 20 February 2018.
^ ab"Oldbury and Seal Chart citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 17 January 2018.
^"Oldbury Hill". National Trust. Archived from the original on 18 January 2018. Retrieved 17 January 2018.
^"Orlestone Forest citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 21 February 2018.
^"Otford to Shoreham Downs citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 21 January 2018. Retrieved 22 February 2018.
^"Otterpool Manor (Aptian-Albian)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Otterpool Quarry citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 11 February 2018.
^"Park Wood, Chilham citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 22 February 2018.
^"Parkgate Down citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 22 February 2018.
^"Parsonage Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 4 February 2018.
^"Pembury (Wealden)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Pembury Cutting and Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 22 February 2018.
^"Peter's Pit". Special Areas of Conservation. Joint Nature Conservation Committee. Archived from the original on 22 April 2016. Retrieved 18 January 2018.
^"Peter's Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 8 April 2018.
^"Polebrook Farm citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 22 February 2018.
^"Preston Marshes citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 22 February 2018.
^"Purple Hill citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 22 February 2018.
^"Queendown Warren". Special Areas of Conservation. Joint Nature Conservation Committee. Archived from the original on 27 May 2016. Retrieved 18 January 2018.
^"Queendown Warren citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 23 February 2018.
^"River Beult citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 23 February 2018.
^"Robins Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 23 February 2018.
^"Rusthall Common citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 25 February 2018.
^"Scotney Castle". National Trust. Archived from the original on 25 November 2017. Retrieved 22 January 2018.
^"Scotney Castle citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 27 February 2018.
^"Seabrook Stream citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 28 January 2018.
^"Sevenoaks Gravel Pits citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 27 February 2018.
^"Warden Point (Aves)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Warden Point (Tertiary Reptilia)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Warden Point (Mass movement)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Sheppey (Tertiary Palaeobotany)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Southborough (Wealden)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 11 January 2018.
^"Southborough Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 25 February 2018.
^"Spot Lane Quarry (Mass movement)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 12 January 2018.
^"Spot Lane Quarry citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 17 March 2018.
^"Stodmarsh citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 28 February 2018.
^"Sturry Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 7 January 2018.
^"The Swale citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 28 February 2018.
^"Tankerton Slopes citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 1 March 2018.
^"Thanet Coast citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 1 March 2018.
^"Lower Upnor Sand Pit (Palaeogene)". Geological Conservation Review. Joint Nature Conservation Committee. Archived from the original on 12 January 2018. Retrieved 12 January 2018.
^"Trottiscliffe Meadows citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 8 April 2018.
^"Wateringbury citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 17 March 2018.
^"Westerham Mines citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 3 March 2018.
^"Westerham Wood citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 21 January 2018.
^"Wye & Crundale Downs". Special Areas of Conservation. Joint Nature Conservation Committee. Archived from the original on 22 April 2016. Retrieved 23 January 2018.
^"Wye and Crundale Downs citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 3 March 2018.
^"Yockletts Bank citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived(PDF) from the original on 2 January 2018. Retrieved 25 February 2018.
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