Silbury Hill , one of the many SSSIs in Wiltshire designated for their grassland plant communities. The following is a list of Sites of Special Scientific Interest  (SSSIs) in Wiltshire  , England, United Kingdom. In England the body responsible for designating SSSIs is Natural England , which chooses a site because of its fauna , flora , geological or physiographical features.[ 1] Area of Search , 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).[ 2] 
Natural England took over the role of designating and managing SSSIs from English Nature  in October 2006 when it was formed from the amalgamation of English Nature, parts of the Countryside Agency  and the Rural Development Service . Natural England, like its predecessor, uses the 1974–1996 county system [ 3] local government  or ceremonial county  boundaries. The data in the table is taken from English Nature's website in the form of citation sheets for each SSSI.[ 4] 
For other counties, see List of SSSIs by Area of Search . 
 
 
Sites      Site name   Reason for designation   Area[A]   Grid reference[B]   Year in which notified   Map[C]     Biological interest   Geological interest   Hectares   Acres     Acres Farm Meadow  Y     4.2   10.4   SU024927 1989   Map    River Avon System  Y     507.8   1,254.8   SU073583 1996   Map    Baverstock Juniper Bank  Y     2.6   6.4   SU035336 1971   Map    Bencroft Hill Meadows  Y     5.1   12.6   SU962732 1988   Map    Bentley Wood  Y     665.0   1,643.0   SU250295 1985   Map    Bincknoll Dip Woods  Y     5.7   14.0   SU111796 1971   Map    Blackmoor Copse  Y     31.3   77.2   SU234292 1971   Map    Botley Down  Y     12.7   31.4   SU292598 1989   Map    Bowerchalke Downs  Y     128.6   317.7   SU004218 1971   Map    Box Mine  Y     56.6   139.8   ST838690 1991   Map    Bracknell Croft  Y     4.8   11.8   SU180330 1971   Map    Bradley Woods  Y     48.7   120.3   ST789410 1986   Map    Bratton Downs  Y  Y  395.8   978.0   ST925522 1971   Map    Brickworth Down and Dean Hill  Y     118.6   293.9   SU246259 1951   Map    Brimsdown Hill  Y     193.7   478.6   ST821391 1951   Map    Britford Water Meadows  Y     18.2   45.0   SU166274 1975   Map    Burcombe Down  Y     47.1   116.4   SU064295 1971   Map    Burderop Wood  Y     48.5   119.8   SU165810 1971   Map    Calstone and Cherhill Downs  Y     128.6   317.9   SU047692 1971   Map    Camp Down  Y     7.3   18.2   SU120338 1965   Map    Charnage Down Chalk Pit     Y  3.7   9.1   ST837329 1971   Map    Chickengrove Bottom  Y     9.8   24.3   SU040216 1975   Map    Chilmark Quarries  Y  Y  9.7   23.9   ST974312 1977   Map    Chilton Foliat Meadows  Y     54.6   134.9   SU315703 1971   Map    Clattinger Farm  Y     60.3   149.0   SU012933 1971   Map    Clearbury Down  Y     31.3   77.3   SU152240 1971   Map    Cley Hill  Y     26.6   65.7   ST838449 1975   Map    Cloatley Manor Farm Meadows  Y     12.1   29.9   ST981910 1997   Map    Clout's Wood  Y     11.8   29.1   SU137796 1951   Map    Coate Water  Y     51.1   126.4   SU188820 1971   Map    Cockey Down  Y     15.2   37.6   SU170317 1971   Map    Colerne Park and Monk's Wood  Y     53.7   132.6   ST838725 1951   Map    The Coombes, Hinton Parva  Y     15.9   39.2   SU228826 1989   Map    Corsham Railway Cutting     Y  6.6   16.4   ST862695 1971   Map    Cotswold Water Park  Y     135.0   337   SU100960 1994   Map    Cranborne Chase  Y     451.4   1,115.4   ST970180 1975   Map    Dank's Down and Truckle Hill  Y     13.1   32.4   ST834758 1990   Map    Dead Maid Quarry     Y  0.4   1.1   ST803324 1951   Map    Dinton Quarry     Y  0.3   0.7   SU006308 1990   Map    Dinton Railway Cutting     Y  0.3   0.7   SU008309 1990   Map    Distillery Farm Meadows  Y     18.7   46.2   SU032898 1988   Map    East Harnham Meadows  Y     17.3   42.7   SU151289 1995   Map    Ebsbury Down  Y     53.4   132.0   SU054352 1975   Map    Emmett Hill Meadows  Y     5.1   12.6   SU009901 1987   Map    Figsbury Ring  Y     11.2   27.7   SU188338 1975   Map    Fonthill Grottoes  Y     0.7   1.7   ST935315 1994   Map    Fyfield Down  Y  Y  325.3   803.8   SU136709 1951   Map    Gallows Hill  Y     27.8   68.7   ST952244 1965   Map    Goldborough Farm Meadows  Y     10.3   25.5   SU086800    Map    Great Cheverell Hill  Y     33.2   82.1   ST966520 1971   Map    Great Quarry, Swindon     Y  1.0   2.5   SU151836 1951   Map    Great Yews  Y     29.3   72.3   SU120231 1951   Map    Gripwood Quarry     Y  2.9   7.0   ST822603 1951   Map    Gutch Common  Y     35.1   86.8   ST896259 1951   Map    Ham Hill  Y     1.5   3.8   SU333617 1971   Map    Hang Wood  Y     20.3   50.2   ST861319 1986   Map    Harries Ground, Rodbourne  Y     6.9   17.0   ST930823 2003   Map    Haydon Meadow  Y     6.4   15.8   SU120890 1999   Map    Heath Hill Farm  Y     20.7   51.2   ST757336 1997   Map    Homington and Coombe Bissett Downs  Y     25.0   61.8   SU104245 1971   Map    Honeybrook Farm  Y     42.4   104.8   ST841730 1992   Map    Inwood, Warleigh  Y     56.9   140.5   ST800633 1988   Map    Jones's Mill  Y     11.6   28.7   SU168613 1975   Map    Kellaways – West Tytherton, River Avon     Y  4.1   10.1   ST945750 1998   Map    River Kennet  Y     112.7   278.5   SU203692 1995   Map    Kennet and Lambourn Floodplain  Y     22.9   56.9   SU316705 1996   Map    King's Play Hill  Y     29.5   72.9   SU006658 1971   Map    Knapp and Barnett's Downs  Y     71.4   176.4   SU030266 1971   Map    Knighton Downs and Wood  Y     203.7   503.5   SU048237 1971   Map    Lady Down Quarry     Y  0.2   0.6   ST961307 1990   Map    Landford Bog  Y     11.6   28.7   SU259185 1987   Map    Landford Heath  Y     11.8   29.0   SU265178 1994   Map    Langley Wood and Homan's Copse  Y     219.3   541.9   SU230206 1985   Map    Little Grubbins Meadow  Y     3.0   7.3   ST831773 1975   Map    Long Knoll  Y     34.2   84.5   ST794376 1971   Map    Loosehanger Copse and Meadows  Y     56.3   139.0   SU215195 1992   Map    Lower Coombe and Ferne Brook Meadows  Y     11.3   28.0   ST916236 2002   Map    Lower Woodford Water Meadows  Y     23.9   58.9   SU124347 1971   Map    Midford Valley Woods  Y     24.6   60.8   ST769611 1975   Map    Morgan's Hill  Y     12.6   31.1   SU028672 1951   Map    The New Forest  Y  Y  28,947.4   71,529.0   SU298081 1959   Map    North Meadow, Cricklade  Y     24.6   109.7   SU094946 1971   Map    Odstock Down  Y     12.1   29.9   SU139250 1975   Map    Okus Quarry     Y  0.3   0.6   SU147836 1951   Map    Old Town Railway Cutting, Swindon     Y  1.8   4.4   SU153832 1975   Map    Out Woods  Y     14.3   35.4   ST833763 1975   Map    Parsonage Down  Y     188.6   466.1   SU050412 1971   Map    Pewsey Downs  Y     305.3   754.4   SU113636 1951   Map    Picket and Clanger Wood  Y     66.4   164.1   ST975543 1989   Map    Piggledene  Y  Y  4.7   11.6   SU141689 1965   Map    Pike Corner  Y     15.2   37.6   SU036934 1986   Map    Pincombe Down  Y     23.8   58.8   ST966217 1971   Map    Porton Down  Y     1,561.8   3,859.4   SU240365 1977   Map    Porton Meadows  Y     17.6   43.6   SU185362 1988   Map    Prescombe Down  Y     76.2   188.3   ST985255 1951   Map    Rack Hill  Y     10.6   26.1   ST842762 1975   Map    Ravensroost Wood  Y     43.7   107.9   SU022882 1989   Map    Restrop Farm and Brockhurst Wood  Y     56.5   139.6   SU073866 1992   Map    Rotherley Downs  Y     120.1   296.6   ST946196 1989   Map    Roundway Down and Covert  Y     86.0   212.5   SU000646 1971   Map    Salisbury Plain  Y     19,689.9   48,655.7   SU070500 1975   Map    Savernake Forest  Y     904.7   2,235.6   SU215665 1971   Map    Scratchbury and Cotley Hills  Y     53.5   132.2   ST915437 1951   Map    Seend Cleeve Quarry     Y  3.0   7.4   ST933609 1987   Map    Seend Ironstone Quarry and Road Cutting     Y  1.2   2.9   ST937610 1965   Map    Silbury Hill  Y     2.3   5.6   SU100685 1965   Map    Spye Park  Y     90.3   223.1   ST952674 1951   Map    Stanton St. Quintin Quarry and Motorway Cutting     Y  2.2   5.4   ST918796 1971   Map    Starveall and Stony Down  Y     22.5   55.7   ST991400 1971   Map    Steeple Ashton     Y  26.5   65.6   ST914558 1998   Map    Steeple Langford Down  Y     21.8   53.7   SU036387 1971   Map    Stert Brook Exposure     Y  0.4   1.0   SU017583 1989   Map    Stockton Wood and Down  Y     61.5   151.8   ST958366 1951   Map    Stoke Common Meadows  Y     10.2   25.1   SU064904 1994   Map    Stratford Toney Down  Y     23.1   57.2   SU095246 1987   Map    Sutton Lane Meadows  Y     3.4   8.5   ST946777 1988   Map    Teffont Evias Quarry / Lane Cutting     Y  3.6   8.9   ST990310 1989   Map    Throope Down  Y     34.4   97.4   SU084246 1971   Map    River Till  Y     32.1   79.2   SU051452 2000   Map    Tytherington Down  Y     5.9   14.6   ST912385 1975   Map    Upper Chicksgrove Quarry     Y  5.6   13.8   ST962296 1971   Map    Upper Waterhay Meadow  Y     2.8   6.8   SU068937 1971   Map    Upton Cow Down  Y     16.4   40.5   ST875491 1989   Map    West Harnham Chalk Pit     Y  2.8   6.9   SU128287 1971   Map    West Yatton Down  Y     14.4   36.0   ST852760 1971   Map    Westbury Ironstone Quarry     Y  0.6   1.4   ST853508 1965   Map    Whiteparish Common  Y     64.5   159.4   SU255233 1965   Map    Whitesheet Hill  Y     136.1   336.3   ST804346 1965   Map    Win Green Down  Y     26.0   64.3   ST927209 1971   Map    Winklebury Hill  Y     63.0   155.5   ST952216 1971   Map    Winsley Mines  Y     1.5   3.7   ST795607 1989   Map    Wootton Bassett Mud Spring     Y  0.8   2.0   SU078815 1997   Map    Wylye and Church Dean Downs  Y     80.9   200.0   SU002361 1951   Map    Yarnbury Castle  Y     9.1   22.5   SU037403 1951   Map  
 
Notes  A B British national grid reference system , also known as OSGB36 , and is the system used by the Ordnance Survey .[ 5] C MAGIC  map service provided by Defra .
References   
 
 
England Scotland Wales Northern Ireland