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__NOTOC__ The following is a list of
Sites 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 ...
(SSSIs) in
Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and borders the counties of Dorset to the southwest, Somerset to the west, Hampshire to the southeast, Gloucestershire ...
, England, United Kingdom. In England the body responsible for designating SSSIs is
Natural England Natural England is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. It is responsible for ensuring that England's natural environment, including its land, flora and fauna, ...
, which chooses a site because of its
fauna Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is '' funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. Zoo ...
,
flora Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. E ...
, geological or physiographical features. As of 2006, there are 134 sites designated in this
Area of Search The following is a list of Sites of Special Scientific Interest (SSSI) by area of search, in the United Kingdom. SSSIs are areas of conservation, consisting of protected areas, recognised for their biological or geological significance. In Northe ...
, of which the vast majority, 108, have been designated due to their biological interest, with just 21 due to their geological interest (and 5 for both). Natural England took over the role of designating and managing SSSIs from
English Nature English Nature was the United Kingdom government agency that promoted the conservation of wildlife, geology and wild places throughout England between 1990 and 2006. It was a non-departmental public body funded by the Department for Environmen ...
in October 2006 when it was formed from the amalgamation of English Nature, parts of the
Countryside Agency The Countryside Agency was a statutory body set up in England in 1999 with the task of improving the quality of the rural environment and the lives of those living in it. The agency was dissolved in 2006 and its functions dispersed among other bod ...
and the
Rural Development Service The Rural Development Service (RDS) was formerly part of the UK Government's Department for Environment, Food and Rural Affairs (Defra). It ceased to exist on 1 October 2006 following the creation of Natural England. History The RDS was create ...
. Natural England, like its predecessor, uses the 1974–1996 county system and as such the same approach is followed here, rather than adopting the current
local government Local government is a generic term for the lowest tiers of public administration within a particular sovereign state. This particular usage of the word government refers specifically to a level of administration that is both geographically-loca ...
or
ceremonial county The counties and areas for the purposes of the lieutenancies, also referred to as the lieutenancy areas of England and informally known as ceremonial counties, are areas of England to which lords-lieutenant are appointed. Legally, the areas i ...
boundaries. The data in the table is taken from English Nature's website in the form of citation sheets for each SSSI.''English Nature'' citation sheets for each SSSI. Retrieved on 2007-03-03. (
PDF Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. ...
files).
For other counties, see
List of SSSIs by Area of Search The following is a list of Sites of Special Scientific Interest (SSSI) by area of search, in the United Kingdom. SSSIs are areas of conservation, consisting of protected areas, recognised for their biological or geological significance. In North ...
.


Sites

, - ,
Blackmoor Copse Blackmoor Copse () is a woodland in southeast Wiltshire, England, managed as a nature reserve by the Wiltshire Wildlife Trust. The copse lies within Pitton and Farley parish, about east of Salisbury. A area of the wood was notified as a biol ...
, style="text-align:center;", , , style="text-align:right;", 31.3 , style="text-align:right;", 77.2 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Botley Down Botley Down () is a biological Site of Special Scientific Interest in Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and borders the counties of Dorset t ...
, style="text-align:center;", , , style="text-align:right;", 12.7 , style="text-align:right;", 31.4 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - ,
Bowerchalke Downs Bowerchalke Downs () (also known as Woodminton, Marleycombe Down and Knowle Down), is a biological Site of Special Scientific Interest in southern Wiltshire, England, notified in 1971. The downs encompass the entire southern outlook of the vil ...
, style="text-align:center;", , , style="text-align:right;", 128.6 , style="text-align:right;", 317.7 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Box Mine , style="text-align:center;", , , style="text-align:right;", 56.6 , style="text-align:right;", 139.8 , style="text-align:center;", , style="text-align:center;", 1991 , style="text-align:center;", , - ,
Bracknell Croft Bracknell Croft () is a 4.8 hectare biological Site of Special Scientific Interest in Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and borders the count ...
, style="text-align:center;", , , style="text-align:right;", 4.8 , style="text-align:right;", 11.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Bradley Woods Bradley Woods () is an area of woodland in Wiltshire, south of Longleat Woods and north of Gare Hill. A 48.7 hectare area within the site has been notified as a biological Site of Special Scientific Interest A Site of Special Scientif ...
, style="text-align:center;", , , style="text-align:right;", 48.7 , style="text-align:right;", 120.3 , style="text-align:center;", , style="text-align:center;", 1986 , style="text-align:center;", , - ,
Bratton Downs Bratton Downs () is a 395.8 hectare biological and geological Site of Special Scientific Interest in Wiltshire, England, near the villages of Bratton and Edington, and about east of the town of Westbury. It was notified in 1971. The design ...
, style="text-align:center;", , style="text-align:center;", , style="text-align:right;", 395.8 , style="text-align:right;", 978.0 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Brickworth Down and Dean Hill Brickworth Down and Dean Hill () is a 118.6 hectare biological Site of Special Scientific Interest in Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and b ...
, style="text-align:center;", , , style="text-align:right;", 118.6 , style="text-align:right;", 293.9 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - ,
Brimsdown Hill Brimsdown Hill () is a 193.7 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1951. It is situated within the Cranborne Chase and West Wiltshire Downs Cranborne Chase and West Wiltshire Downs is an Area of Outsta ...
, style="text-align:center;", , , style="text-align:right;", 193.7 , style="text-align:right;", 478.6 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Britford Water Meadows , style="text-align:center;", , , style="text-align:right;", 18.2 , style="text-align:right;", 45.0 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Burcombe Down , style="text-align:center;", , , style="text-align:right;", 47.1 , style="text-align:right;", 116.4 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Burderop Wood Burderop Wood () is a 48.5 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1971. The site contains wet ash-maple and acid pedunculate oak-hazel-ash woodland, and its notification as an SSSI due to this, particular ...
, style="text-align:center;", , , style="text-align:right;", 48.5 , style="text-align:right;", 119.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Calstone and Cherhill Downs , style="text-align:center;", , , style="text-align:right;", 128.6 , style="text-align:right;", 317.9 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Camp Down Camp Down () is a biological Site of Special Scientific Interest in Wiltshire in South West England. It was designated as such in 1965. Location The area overlooks the valley of the River Avon, and is about northwest of Salisbury. It lies ea ...
, style="text-align:center;", , , style="text-align:right;", 7.3 , style="text-align:right;", 18.2 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - , Charnage Down Chalk Pit , , style="text-align:center;", , style="text-align:right;", 3.7 , style="text-align:right;", 9.1 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Chickengrove Bottom , style="text-align:center;", , , style="text-align:right;", 9.8 , style="text-align:right;", 24.3 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - ,
Chilmark Quarries Chilmark Quarries () is a 9.65 hectare biological and geological Site of Special Scientific Interest (SSSI), in the ravine south of the village of Chilmark in Wiltshire, England. The SSSI was first notified in 1977. Its importance as a home ...
, style="text-align:center;", , style="text-align:center;", , style="text-align:right;", 9.7 , style="text-align:right;", 23.9 , style="text-align:center;", , style="text-align:center;", 1977 , style="text-align:center;", , - , Chilton Foliat Meadows , style="text-align:center;", , , style="text-align:right;", 54.6 , style="text-align:right;", 134.9 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Clattinger Farm , style="text-align:center;", , , style="text-align:right;", 60.3 , style="text-align:right;", 149.0 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Clearbury Down , style="text-align:center;", , , style="text-align:right;", 31.3 , style="text-align:right;", 77.3 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Cley Hill Cley Hill () is a prominent hill to the west of Warminster in Wiltshire, England. Its summit has a commanding view of the Wiltshire / Somerset county boundary, at elevation. The land is in Corsley parish and is owned by the National Trust. A ...
, style="text-align:center;", , , style="text-align:right;", 26.6 , style="text-align:right;", 65.7 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Cloatley Manor Farm Meadows , style="text-align:center;", , , style="text-align:right;", 12.1 , style="text-align:right;", 29.9 , style="text-align:center;", , style="text-align:center;", 1997 , style="text-align:center;", , - ,
Clout's Wood Clout's Wood () is an 11.78 hectare biological Site of Special Scientific Interest in Wiltshire, SSSI notification, notified in 1951. The site is managed as a nature reserve by Wiltshire Wildlife Trust. Sources Natural England citation sheet f ...
, style="text-align:center;", , , style="text-align:right;", 11.8 , style="text-align:right;", 29.1 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - ,
Coate Water Coate Water () is a country park situated to the southeast of central Swindon, England, near junction 15 of the M4. It takes its name from its main feature, a reservoir originally built to provide water for the Wilts & Berks Canal. Now nam ...
, style="text-align:center;", , , style="text-align:right;", 51.1 , style="text-align:right;", 126.4 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Cockey Down , style="text-align:center;", , , style="text-align:right;", 15.2 , style="text-align:right;", 37.6 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Colerne Park and Monk's Wood Colerne Park and Monk's Wood () is a 53.7 hectare biological Site of Special Scientific Interest in Wiltshire, England, SSSI notification, notified in 1951. The site is north-east of Colerne village, and its eastern part is in the floodplain of th ...
, style="text-align:center;", , , style="text-align:right;", 53.7 , style="text-align:right;", 132.6 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , The Coombes, Hinton Parva , style="text-align:center;", , , style="text-align:right;", 15.9 , style="text-align:right;", 39.2 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - , Corsham Railway Cutting , , style="text-align:center;", , style="text-align:right;", 6.6 , style="text-align:right;", 16.4 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Cotswold Water Park The Cotswold Water Park is the United Kingdom's largest marl lake system, straddling the Wiltshire–Gloucestershire border, northwest of Cricklade and south of Cirencester. There are 180 lakes, spread over . The park is a mix of nature con ...
, style="text-align:center;", , , style="text-align:right;", 135.0 , style="text-align:right;", 337 , style="text-align:center;", , style="text-align:center;", 1994 , style="text-align:center;", , - ,
Cranborne Chase Cranborne Chase () is an area of central southern England, straddling the counties Dorset, Hampshire and Wiltshire. It is part of the Cranborne Chase and West Wiltshire Downs Area of Outstanding Natural Beauty (AONB). The area is dominated by, ...
, style="text-align:center;", , , style="text-align:right;", 451.4 , style="text-align:right;", 1,115.4 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Dank's Down and Truckle Hill , style="text-align:center;", , , style="text-align:right;", 13.1 , style="text-align:right;", 32.4 , style="text-align:center;", , style="text-align:center;", 1990 , style="text-align:center;", , - , Dead Maid Quarry , , style="text-align:center;", , style="text-align:right;", 0.4 , style="text-align:right;", 1.1 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Dinton Quarry , , style="text-align:center;", , style="text-align:right;", 0.3 , style="text-align:right;", 0.7 , style="text-align:center;", , style="text-align:center;", 1990 , style="text-align:center;", , - , Dinton Railway Cutting , , style="text-align:center;", , style="text-align:right;", 0.3 , style="text-align:right;", 0.7 , style="text-align:center;", , style="text-align:center;", 1990 , style="text-align:center;", , - , Distillery Farm Meadows , style="text-align:center;", , , style="text-align:right;", 18.7 , style="text-align:right;", 46.2 , style="text-align:center;", , style="text-align:center;", 1988 , style="text-align:center;", , - ,
East Harnham Meadows East Harnham Meadows () is a 17.29 hectare biological Site of Special Scientific Interest in Wiltshire, England, in the Harnham suburb to the south-east of the city of Salisbury. The water-meadows are in the flood-plain of the River Avon. The sit ...
, style="text-align:center;", , , style="text-align:right;", 17.3 , style="text-align:right;", 42.7 , style="text-align:center;", , style="text-align:center;", 1995 , style="text-align:center;", , - , Ebsbury Down , style="text-align:center;", , , style="text-align:right;", 53.4 , style="text-align:right;", 132.0 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Emmett Hill Meadows , style="text-align:center;", , , style="text-align:right;", 5.1 , style="text-align:right;", 12.6 , style="text-align:center;", , style="text-align:center;", 1987 , style="text-align:center;", , - ,
Figsbury Ring Figsbury Ring () is an 11.2 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1975. It is owned and managed by the National Trust. Earthworks Within the wider SSSI mentioned above, the earthworks of Figsbury Rin ...
, style="text-align:center;", , , style="text-align:right;", 11.2 , style="text-align:right;", 27.7 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - ,
Fonthill Grottoes Fonthill Grottoes is a 0.69 hectare biological Site of Special Scientific Interest, in woodland adjacent to Fonthill Lake in Wiltshire, notified in 1994. Its SSSI designation is due to its roosting bats: the site is the sixth largest hibernaculum ...
, style="text-align:center;", , , style="text-align:right;", 0.7 , style="text-align:right;", 1.7 , style="text-align:center;", , style="text-align:center;", 1994 , style="text-align:center;", , - ,
Fyfield Down Fyfield Down () is part of the Marlborough Downs, about north of the village of Fyfield, Wiltshire. The down is a 325.3 hectare biological and geological Site of Special Scientific Interest, notified in 1951. The down has the best assemblage o ...
, style="text-align:center;", , style="text-align:center;", , style="text-align:right;", 325.3 , style="text-align:right;", 803.8 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Gallows Hill , style="text-align:center;", , , style="text-align:right;", 27.8 , style="text-align:right;", 68.7 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - , Goldborough Farm Meadows , style="text-align:center;", , , style="text-align:right;", 10.3 , style="text-align:right;", 25.5 , style="text-align:center;", , , style="text-align:center;", , - , Great Cheverell Hill , style="text-align:center;", , , style="text-align:right;", 33.2 , style="text-align:right;", 82.1 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Great Quarry, Swindon Great Quarry, Swindon () is a 0.994 hectare geological Site of Special Scientific Interest (SSSI) in Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and b ...
, , style="text-align:center;", , style="text-align:right;", 1.0 , style="text-align:right;", 2.5 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Great Yews , style="text-align:center;", , , style="text-align:right;", 29.3 , style="text-align:right;", 72.3 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Gripwood Quarry , , style="text-align:center;", , style="text-align:right;", 2.9 , style="text-align:right;", 7.0 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Gutch Common , style="text-align:center;", , , style="text-align:right;", 35.1 , style="text-align:right;", 86.8 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Ham Hill , style="text-align:center;", , , style="text-align:right;", 1.5 , style="text-align:right;", 3.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Hang Wood , style="text-align:center;", , , style="text-align:right;", 20.3 , style="text-align:right;", 50.2 , style="text-align:center;", , style="text-align:center;", 1986 , style="text-align:center;", , - , Harries Ground, Rodbourne , style="text-align:center;", , , style="text-align:right;", 6.9 , style="text-align:right;", 17.0 , style="text-align:center;", , style="text-align:center;", 2003 , style="text-align:center;", , - ,
Haydon Meadow Haydon Meadow () known locally as Clifford Meadow is a 6.39 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1999. The site lies within the Parish of Haydon Wick and is home to Anacamptis morio a rare protected spe ...
, style="text-align:center;", , , style="text-align:right;", 6.4 , style="text-align:right;", 15.8 , style="text-align:center;", , style="text-align:center;", 1999 , style="text-align:center;", , - , Heath Hill Farm , style="text-align:center;", , , style="text-align:right;", 20.7 , style="text-align:right;", 51.2 , style="text-align:center;", , style="text-align:center;", 1997 , style="text-align:center;", , - ,
Homington and Coombe Bissett Downs Homington and Coombe Bissett Downs () is a 25.0 hectare biological Site of Special Scientific Interest in Wiltshire, SSSI notification, notified in 1971. Coombe Bissett Downs is managed as a nature reserve by Wiltshire Wildlife Trust. Sources Na ...
, style="text-align:center;", , , style="text-align:right;", 25.0 , style="text-align:right;", 61.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Honeybrook Farm Honeybrook Farm () is a working farm south of Castle Combe in Wiltshire, England, between the villages of Biddestone and Slaughterford. The farm has a total area of , of which are designated as a biological Site of Special Scientific Interest. ...
, style="text-align:center;", , , style="text-align:right;", 42.4 , style="text-align:right;", 104.8 , style="text-align:center;", , style="text-align:center;", 1992 , style="text-align:center;", , - ,
Inwood, Warleigh Inwood, Warleigh () is a 56.9 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1988. Although the nearest village is Warleigh in Somerset, the site is in the parish of Monkton Farleigh Monkton Farleigh is a vil ...
, style="text-align:center;", , , style="text-align:right;", 56.9 , style="text-align:right;", 140.5 , style="text-align:center;", , style="text-align:center;", 1988 , style="text-align:center;", , - ,
Jones's Mill Jones's Mill () is an 11.6 hectare biological Site of Special Scientific Interest near Pewsey in Wiltshire, SSSI notification, notified in 1975. The site is managed as a nature reserve by Wiltshire Wildlife Trust. Sources Natural England citat ...
, style="text-align:center;", , , style="text-align:right;", 11.6 , style="text-align:right;", 28.7 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Kellaways – West Tytherton, River Avon , , style="text-align:center;", , style="text-align:right;", 4.1 , style="text-align:right;", 10.1 , style="text-align:center;", , style="text-align:center;", 1998 , style="text-align:center;", , - ,
River Kennet The Kennet is a tributary of the River Thames in Southern England. Most of the river is straddled by the North Wessex Downs AONB (Area of Outstanding Natural Beauty). The lower reaches have been made navigable as the Kennet Navigation, which â ...
, style="text-align:center;", , , style="text-align:right;", 112.7 , style="text-align:right;", 278.5 , style="text-align:center;", , style="text-align:center;", 1995 , style="text-align:center;", , - , Kennet and Lambourn Floodplain , style="text-align:center;", , , style="text-align:right;", 22.9 , style="text-align:right;", 56.9 , style="text-align:center;", , style="text-align:center;", 1996 , style="text-align:center;", , - ,
King's Play Hill King's Play Hill () is a 29.5 hectare biological Site of Special Scientific Interest near Heddington, Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and ...
, style="text-align:center;", , , style="text-align:right;", 29.5 , style="text-align:right;", 72.9 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Knapp and Barnett's Downs , style="text-align:center;", , , style="text-align:right;", 71.4 , style="text-align:right;", 176.4 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Knighton Downs and Wood , style="text-align:center;", , , style="text-align:right;", 203.7 , style="text-align:right;", 503.5 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Lady Down Quarry , , style="text-align:center;", , style="text-align:right;", 0.2 , style="text-align:right;", 0.6 , style="text-align:center;", , style="text-align:center;", 1990 , style="text-align:center;", , - , Landford Bog , style="text-align:center;", , , style="text-align:right;", 11.6 , style="text-align:right;", 28.7 , style="text-align:center;", , style="text-align:center;", 1987 , style="text-align:center;", , - ,
Landford Heath Landford Heath () is an 11.75 hectare biological Site of Special Scientific Interest near Landford __NOTOC__ Landford is a village and civil parish southeast of Salisbury in Wiltshire, England. To the south and east of the parish is the county ...
, style="text-align:center;", , , style="text-align:right;", 11.8 , style="text-align:right;", 29.0 , style="text-align:center;", , style="text-align:center;", 1994 , style="text-align:center;", , - , Langley Wood and Homan's Copse , style="text-align:center;", , , style="text-align:right;", 219.3 , style="text-align:right;", 541.9 , style="text-align:center;", , style="text-align:center;", 1985 , style="text-align:center;", , - , Little Grubbins Meadow , style="text-align:center;", , , style="text-align:right;", 3.0 , style="text-align:right;", 7.3 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - ,
Long Knoll Long Knoll () is a hill in the west of the English county of Wiltshire. It is a ridge of chalk grassland, some in length, and forms the boundary between the civil parishes of Kilmington to the south and Maiden Bradley to the north. The ridge is ...
, style="text-align:center;", , , style="text-align:right;", 34.2 , style="text-align:right;", 84.5 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Loosehanger Copse and Meadows , style="text-align:center;", , , style="text-align:right;", 56.3 , style="text-align:right;", 139.0 , style="text-align:center;", , style="text-align:center;", 1992 , style="text-align:center;", , - , Lower Coombe and Ferne Brook Meadows , style="text-align:center;", , , style="text-align:right;", 11.3 , style="text-align:right;", 28.0 , style="text-align:center;", , style="text-align:center;", 2002 , style="text-align:center;", , - , Lower Woodford Water Meadows , style="text-align:center;", , , style="text-align:right;", 23.9 , style="text-align:right;", 58.9 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Midford Valley Woods , style="text-align:center;", , , style="text-align:right;", 24.6 , style="text-align:right;", 60.8 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Morgan's Hill , style="text-align:center;", , , style="text-align:right;", 12.6 , style="text-align:right;", 31.1 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , The New Forest , style="text-align:center;", , style="text-align:center;", , style="text-align:right;", 28,947.4 , style="text-align:right;", 71,529.0 , style="text-align:center;", , style="text-align:center;", 1959 , style="text-align:center;", , - ,
North Meadow, Cricklade North Meadow, Cricklade () is a hay meadow near the town of Cricklade, in Wiltshire, England. It is 24.6 hectares in size. It is a traditionally managed lowland hay-meadow, or ''lammas land'', and is grazed ''in common'' between 12 August and 12 F ...
, style="text-align:center;", , , style="text-align:right;", 24.6 , style="text-align:right;", 109.7 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Odstock Down Odstock Down () is a 12.1 hectare biological Site of Special Scientific Interest in Wiltshire, England, above the village of Odstock Odstock is a village and civil parish south of Salisbury in Wiltshire, England. The parish includes the village ...
, style="text-align:center;", , , style="text-align:right;", 12.1 , style="text-align:right;", 29.9 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Okus Quarry , , style="text-align:center;", , style="text-align:right;", 0.3 , style="text-align:right;", 0.6 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - ,
Old Town Railway Cutting, Swindon Old Town Railway Cutting () is a 1.78 hectare geological Site of Special Scientific Interest in Swindon, Wiltshire, notified in 1975. It is near the site of the former Swindon Town railway station. The site is notable for an unusual exposure o ...
, , style="text-align:center;", , style="text-align:right;", 1.8 , style="text-align:right;", 4.4 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - ,
Out Woods Out Woods () is a 14.3 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1975. It is an ancient Ash-Maple ''Acer'' () is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sa ...
, style="text-align:center;", , , style="text-align:right;", 14.3 , style="text-align:right;", 35.4 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Parsonage Down , style="text-align:center;", , , style="text-align:right;", 188.6 , style="text-align:right;", 466.1 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Pewsey Downs , style="text-align:center;", , , style="text-align:right;", 305.3 , style="text-align:right;", 754.4 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - ,
Picket and Clanger Wood Picket and Clanger Wood () is a 66.4 hectare biological Site of Special Scientific Interest in Wiltshire, England, and lies off the A350 national route between the villages of Yarnbrook Yarnbrook is a large hamlet in Wiltshire, England, between ...
, style="text-align:center;", , , style="text-align:right;", 66.4 , style="text-align:right;", 164.1 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - , Piggledene , style="text-align:center;", , style="text-align:center;", , style="text-align:right;", 4.7 , style="text-align:right;", 11.6 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - , Pike Corner , style="text-align:center;", , , style="text-align:right;", 15.2 , style="text-align:right;", 37.6 , style="text-align:center;", , style="text-align:center;", 1986 , style="text-align:center;", , - , Pincombe Down , style="text-align:center;", , , style="text-align:right;", 23.8 , style="text-align:right;", 58.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Porton Down Porton Down is a science park in Wiltshire, England, just northeast of the village of Porton, near Salisbury. It is home to two British government facilities: a site of the Ministry of Defence's Defence Science and Technology Laboratory (Dstl ...
, style="text-align:center;", , , style="text-align:right;", 1,561.8 , style="text-align:right;", 3,859.4 , style="text-align:center;", , style="text-align:center;", 1977 , style="text-align:center;", , - ,
Porton Meadows Porton Meadows () is a 17.6 hectare biological 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 ...
, style="text-align:center;", , , style="text-align:right;", 17.6 , style="text-align:right;", 43.6 , style="text-align:center;", , style="text-align:center;", 1988 , style="text-align:center;", , - , Prescombe Down , style="text-align:center;", , , style="text-align:right;", 76.2 , style="text-align:right;", 188.3 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Rack Hill , style="text-align:center;", , , style="text-align:right;", 10.6 , style="text-align:right;", 26.1 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Ravensroost Wood , style="text-align:center;", , , style="text-align:right;", 43.7 , style="text-align:right;", 107.9 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - ,
Restrop Farm and Brockhurst Wood Restrop Farm and Brockhurst Wood () is a 56.5 hectare biological Site of Special Scientific Interest in Wiltshire, England, about south-west of Purton village. The SSSI was notified in 1992, for its diverse habitat which includes unimproved hay ...
, style="text-align:center;", , , style="text-align:right;", 56.5 , style="text-align:right;", 139.6 , style="text-align:center;", , style="text-align:center;", 1992 , style="text-align:center;", , - , Rotherley Downs , style="text-align:center;", , , style="text-align:right;", 120.1 , style="text-align:right;", 296.6 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - ,
Roundway Down and Covert Roundway Down and Covert () is an 86 hectare biological Site of Special Scientific Interest near Devizes in Wiltshire, England. It was notified in 1971. Roundway Down was the site of a battle in 1643 during the Civil War, hence the Iron Age hillf ...
, style="text-align:center;", , , style="text-align:right;", 86.0 , style="text-align:right;", 212.5 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Salisbury Plain Salisbury Plain is a chalk plateau in the south western part of central southern England covering . It is part of a system of chalk downlands throughout eastern and southern England formed by the rocks of the Chalk Group and largely lies wi ...
, style="text-align:center;", , , style="text-align:right;", 19,689.9 , style="text-align:right;", 48,655.7 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - ,
Savernake Forest Savernake Forest stands on a Cretaceous chalk plateau between Marlborough and Great Bedwyn in Wiltshire, England. Its area is approximately . Most of the forest lies within the civil parish of Savernake. It is privately owned by the Earl of Ca ...
, style="text-align:center;", , , style="text-align:right;", 904.7 , style="text-align:right;", 2,235.6 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Scratchbury and Cotley Hills , style="text-align:center;", , , style="text-align:right;", 53.5 , style="text-align:right;", 132.2 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Seend Cleeve Quarry , , style="text-align:center;", , style="text-align:right;", 3.0 , style="text-align:right;", 7.4 , style="text-align:center;", , style="text-align:center;", 1987 , style="text-align:center;", , - ,
Seend Ironstone Quarry and Road Cutting Seend Ironstone Quarry and Road Cutting () is a Geological Site of Special Scientific Interest at Seend in Wiltshire, England, notified in 1965. The site contains facies of Lower Greensand containing specimens of fauna not found elsewhere. ...
, , style="text-align:center;", , style="text-align:right;", 1.2 , style="text-align:right;", 2.9 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - ,
Silbury Hill Silbury Hill is a prehistoric artificial chalk mound near Avebury in the English county of Wiltshire. It is part of the Stonehenge, Avebury and Associated Sites UNESCO World Heritage Site. At high, it is the tallest prehistoric man-made mound ...
, style="text-align:center;", , , style="text-align:right;", 2.3 , style="text-align:right;", 5.6 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - ,
Spye Park Spye Park is a former country estate in Bromham parish in Wiltshire, England. It lies north of Chittoe, about north-west of Bromham village and east of Lacock. The historic house which stood there, near the Roman road from London to Bath, h ...
, style="text-align:center;", , , style="text-align:right;", 90.3 , style="text-align:right;", 223.1 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Stanton St. Quintin Quarry and Motorway Cutting , , style="text-align:center;", , style="text-align:right;", 2.2 , style="text-align:right;", 5.4 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Starveall and Stony Down , style="text-align:center;", , , style="text-align:right;", 22.5 , style="text-align:right;", 55.7 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Steeple Ashton Steeple Ashton is a village and civil parish in Wiltshire, England, east of Trowbridge. In the north of the parish are the hamlets of Ashton Common and Bullenhill. Name and history Until the Dissolution of the Monasteries, Steeple Ashton w ...
, , style="text-align:center;", , style="text-align:right;", 26.5 , style="text-align:right;", 65.6 , style="text-align:center;", , style="text-align:center;", 1998 , style="text-align:center;", , - , Steeple Langford Down , style="text-align:center;", , , style="text-align:right;", 21.8 , style="text-align:right;", 53.7 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Stert Brook Exposure , , style="text-align:center;", , style="text-align:right;", 0.4 , style="text-align:right;", 1.0 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - , Stockton Wood and Down , style="text-align:center;", , , style="text-align:right;", 61.5 , style="text-align:right;", 151.8 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Stoke Common Meadows , style="text-align:center;", , , style="text-align:right;", 10.2 , style="text-align:right;", 25.1 , style="text-align:center;", , style="text-align:center;", 1994 , style="text-align:center;", , - , Stratford Toney Down , style="text-align:center;", , , style="text-align:right;", 23.1 , style="text-align:right;", 57.2 , style="text-align:center;", , style="text-align:center;", 1987 , style="text-align:center;", , - , Sutton Lane Meadows , style="text-align:center;", , , style="text-align:right;", 3.4 , style="text-align:right;", 8.5 , style="text-align:center;", , style="text-align:center;", 1988 , style="text-align:center;", , - , Teffont Evias Quarry / Lane Cutting , , style="text-align:center;", , style="text-align:right;", 3.6 , style="text-align:right;", 8.9 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - , Throope Down , style="text-align:center;", , , style="text-align:right;", 34.4 , style="text-align:right;", 97.4 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , River Till , style="text-align:center;", , , style="text-align:right;", 32.1 , style="text-align:right;", 79.2 , style="text-align:center;", , style="text-align:center;", 2000 , style="text-align:center;", , - , Tytherington Down , style="text-align:center;", , , style="text-align:right;", 5.9 , style="text-align:right;", 14.6 , style="text-align:center;", , style="text-align:center;", 1975 , style="text-align:center;", , - , Upper Chicksgrove Quarry , , style="text-align:center;", , style="text-align:right;", 5.6 , style="text-align:right;", 13.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Upper Waterhay Meadow Upper Waterhay Meadow () is a 2.8 hectare biological Site of Special Scientific Interest in north Wiltshire, England, SSSI notification, notified in 1971. It lies on the River Thames, Thames floodplain in Ashton Keynes parish, downstream (east) of ...
, style="text-align:center;", , , style="text-align:right;", 2.8 , style="text-align:right;", 6.8 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - ,
Upton Cow Down Upton Cow Down () is a 16.4 hectare biological Site of Special Scientific Interest in Wiltshire. The down is an area of chalk grassland on the western edge of Salisbury Plain. It lies one mile south of the town of Westbury, above the village o ...
, style="text-align:center;", , , style="text-align:right;", 16.4 , style="text-align:right;", 40.5 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - , West Harnham Chalk Pit , , style="text-align:center;", , style="text-align:right;", 2.8 , style="text-align:right;", 6.9 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , West Yatton Down , style="text-align:center;", , , style="text-align:right;", 14.4 , style="text-align:right;", 36.0 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Westbury Ironstone Quarry , , style="text-align:center;", , style="text-align:right;", 0.6 , style="text-align:right;", 1.4 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - ,
Whiteparish Common Whiteparish Common () is a 64.5 hectare biological Site of Special Scientific Interest near Whiteparish Whiteparish is a village and civil parish on the A27 about southeast of Salisbury in Wiltshire, England. The village is about from the ...
, style="text-align:center;", , , style="text-align:right;", 64.5 , style="text-align:right;", 159.4 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - ,
Whitesheet Hill White Sheet Hill, also known as Whitesheet Hill, is a hill in the English county of Wiltshire. As one of the most westerly areas of downland in Britain the area is noted for its chalky farmland which contains a rich variety of rare and protected ...
, style="text-align:center;", , , style="text-align:right;", 136.1 , style="text-align:right;", 336.3 , style="text-align:center;", , style="text-align:center;", 1965 , style="text-align:center;", , - , Win Green Down , style="text-align:center;", , , style="text-align:right;", 26.0 , style="text-align:right;", 64.3 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Winklebury Hill , style="text-align:center;", , , style="text-align:right;", 63.0 , style="text-align:right;", 155.5 , style="text-align:center;", , style="text-align:center;", 1971 , style="text-align:center;", , - , Winsley Mines , style="text-align:center;", , , style="text-align:right;", 1.5 , style="text-align:right;", 3.7 , style="text-align:center;", , style="text-align:center;", 1989 , style="text-align:center;", , - , Wootton Bassett Mud Spring , , style="text-align:center;", , style="text-align:right;", 0.8 , style="text-align:right;", 2.0 , style="text-align:center;", , style="text-align:center;", 1997 , style="text-align:center;", , - , Wylye and Church Dean Downs , style="text-align:center;", , , style="text-align:right;", 80.9 , style="text-align:right;", 200.0 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;", , - , Yarnbury Castle , style="text-align:center;", , , style="text-align:right;", 9.1 , style="text-align:right;", 22.5 , style="text-align:center;", , style="text-align:center;", 1951 , style="text-align:center;",


Notes

:Data rounded to one decimal place. :Grid reference is based on the
British national grid reference system The Ordnance Survey National Grid reference system (OSGB) (also known as British National Grid (BNG)) is a system of geographic grid references used in Great Britain, distinct from latitude and longitude. The Ordnance Survey (OS) devised the ...
, also known as
OSGB36 The Ordnance Survey National Grid reference system (OSGB) (also known as British National Grid (BNG)) is a system of geographic grid references used in Great Britain, distinct from latitude and longitude. The Ordnance Survey (OS) devised the ...
, and is the system used by the
Ordnance Survey , nativename_a = , nativename_r = , logo = Ordnance Survey 2015 Logo.svg , logo_width = 240px , logo_caption = , seal = , seal_width = , seal_caption = , picture = , picture_width = , picture_caption = , formed = , preceding1 = , di ...
. :Link to maps using the ''MAGIC'' map service provided by ''Defra''.


References

{{featured list
Wiltshire Wiltshire (; abbreviated Wilts) is a historic and ceremonial county in South West England with an area of . It is landlocked and borders the counties of Dorset to the southwest, Somerset to the west, Hampshire to the southeast, Gloucestershire ...
Sites of Special