List of Sites of Special Scientific Interest in Buckinghamshire

Temple Island Meadows with the River Thames in the background

Buckinghamshire is a county in south-east England.^[1] Its county town is Aylesbury,^[2] and it is surrounded by Northamptonshire to the north, Bedfordshire, Hertfordshire and Greater London to the east, Surrey and Berkshire to the south, and Oxfordshire to the west.^[3] Under Buckinghamshire County Council there are four districts, Aylesbury Vale, Chiltern, South Bucks and Wycombe, while Milton Keynes has a separate unitary borough council.^[4] Buckinghamshire has an area of 1874 km², and a population of 739,600.^[5]

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.^[6] As of April 2016, there are 65 SSSIs in this Area of Search, 55 of which have been designated for biological interest and 10 for geological interest.^[7] Thirty are in the Chilterns Area of Outstanding Natural Beauty, three are in National Nature Reserves, four are in Special Areas of Conservation, and seventeen are managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.

For other counties, see List of SSSIs by Area of Search.

Key

Interest B = site of biological interest G = site of geological interest

Public access FP = Access only to a footpath across the site NO = no public access to site PP = public access to part of site YES = public access to site

Other classifications

BBOWT = Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust CAONB = Chilterns Area of Outstanding Natural Beauty FC = Forestry Commission GCR = Geological Conservation Review HMWT = Herts and Middlesex Wildlife Trust LB = Listed building LNR = Local nature reserve

NCR = A Nature Conservation Review NNR = National nature reserve NT = National Trust SAC = Special Area of Conservation SM = Scheduled Monument WT = Woodland Trust

Sites

Contents :

• A
• B
• D
• E
• F
• G
• H
• K
• L
• M
• N
• O
• P
• R
• S
• T
• W
• Y

Site name	Photograph	B	G	Area[lower-alpha 1]	Public access	Location[lower-alpha 1]	Other classifications	Map[lower-alpha 2]	Citation[lower-alpha 3]
Ashridge Commons and Woods				640.1 hectares (1,582 acres)	YES	Ashridge 51°48′42″N 0°35′14″W / 51.8116°N 0.5871°W SP975135	CAONB,[8] NT[8]	Map	Citation
Aston Clinton Ragpits				2.9 hectares (7.2 acres)	YES	Aston Clinton 51°47′20″N 0°42′50″W / 51.7888°N 0.7140°W SP888108	BBOWT,[9] CAONB[9]	Map	Citation
Aston Rowant				128.5 hectares (318 acres)	YES	Aston Rowant 51°40′08″N 0°56′55″W / 51.6689°N 0.9487°W SU728972	CAONB,[10] NCR,[11] NNR,[10] SAC[12][13]	Map	Citation
Aston Rowant Woods				209.7 hectares (518 acres)	YES	Aston Rowant 51°40′46″N 0°55′00″W / 51.6794°N 0.9167°W SU750984	CAONB,[14] NCR,[15] NNR,[16] SAC[17][18]	Map	Citation
Bacombe and Coombe Hills				76.4 hectares (189 acres)	YES	Upper Bacombe 51°45′12″N 0°46′02″W / 51.7534°N 0.7671°W SP852068	BBOWT,[19] CAONB,[20] LNR,[21] NT[22]	Map	Citation
Bierton Clay Pit				0.1 hectares (0.25 acres)	NO	Bierton 51°50′01″N 0°47′02″W / 51.8336°N 0.7838°W SP839157	GCR[23]	Map	Citation
Black Park				15.3 hectares (38 acres)	YES	Wexham 51°32′51″N 0°32′26″W / 51.5476°N 0.5405°W TQ013842	LNR[24]	Map	Citation
Bolter End Sand Pit				0.3 hectares (0.74 acres)	NO	Bolter End 51°37′13″N 0°50′50″W / 51.6203°N 0.8473°W SU799919	GCR[25]	Map	Citation
Bradenham Woods, Park Wood and The Coppice				129.1 hectares (319 acres)	YES	Bradenham 51°40′42″N 0°48′14″W / 51.6783°N 0.8039°W SU828984	CAONB,[26] NCR,[26] NT,[27] SAC,[27] SM[28]	Map	Citation
Bugle Quarry				0.1 hectares (0.25 acres)	NO	Hartwell 51°48′07″N 0°51′05″W / 51.8019°N 0.8514°W SP793121	GCR[29][30]	Map	Citation
Burnham Beeches				374.6 hectares (926 acres)	PP	Farnham Common 51°33′44″N 0°37′51″W / 51.5622°N 0.6309°W SU950857	NNR,[31] SAC,[32] SM[33]	Map	Citation
Buttlers Hangings				3.9 hectares (9.6 acres)	YES	Bradenham 51°39′31″N 0°49′13″W / 51.6587°N 0.8203°W SU817962	CAONB[34]	Map	Citation
Dancersend				81.3 hectares (201 acres)	YES	Wendover 51°46′34″N 0°41′49″W / 51.7760°N 0.6969°W SP900094	BBOWT,[35] CAONB,[36] FC[36]	Map	Citation
Dancersend Waterworks				4.0 hectares (9.9 acres)	NO	Hastoe 51°46′21″N 0°41′18″W / 51.7724°N 0.6883°W SP906090	CAONB,[37] LB[38]	Map	Citation
Ellesborough and Kimble Warrens				68.9 hectares (170 acres)	YES	Ellesborough 51°44′41″N 0°47′52″W / 51.7447°N 0.7978°W SP831058	CAONB,[39] SM[40]	Map	Citation
Fayland Chalk Bank				0.6 hectares (1.5 acres)	NO	Parmoor 51°35′30″N 0°51′55″W / 51.5917°N 0.8653°W SU787887	CAONB[41]	Map	Citation
Fern House Gravel Pit				1.3 hectares (3.2 acres)	NO	Bourne End 51°35′18″N 0°43′36″W / 51.5884°N 0.7268°W SU883885	GCR[42]	Map	Citation
Finemere Wood				45.7 hectares (113 acres)	YES	Quainton 51°53′24″N 0°57′29″W / 51.8901°N 0.9581°W SP718218	BBOWT[43]	Map	Citation
Foxcote Reservoir and Wood				48.3 hectares (119 acres)	NO	Akeley 52°01′17″N 0°57′55″W / 52.0215°N 0.9653°W SP711364	BBOWT[44]	Map	Citation
Frieth Meadows				2.5 hectares (6.2 acres)	NO	Frieth 51°36′28″N 0°50′51″W / 51.6077°N 0.8476°W SU799905		Map	Citation
Froghall Brickworks				0.7 hectares (1.7 acres)	NO	Chalfont St Giles 51°38′14″N 0°35′23″W / 51.6372°N 0.5896°W SU977941		Map	Citation
Frogmore Meadows				4.6 hectares (11 acres)	YES	Chenies 51°40′47″N 0°31′29″W / 51.6796°N 0.5247°W TQ021989	CAONB[45]	Map	Citation
Gomm Valley				4.1 hectares (10 acres)	YES	Micklefield 51°37′17″N 0°42′21″W / 51.6215°N 0.7057°W SU897922	BBOWT,[46] CAONB[47]	Map	Citation
Grangelands and Pulpit Hill				25.5 hectares (63 acres)	YES	Cadsden 51°44′15″N 0°48′03″W / 51.7376°N 0.8009°W SP829050	BBOWT,[48] CAONB,[48] NT[48]	Map	Citation
Grendon and Doddershall Woods				67.1 hectares (166 acres)	YES	Grendon Underwood 51°52′53″N 0°59′09″W / 51.8814°N 0.9859°W SP699208		Map	Citation
Ham Home-cum-Hamgreen Woods				23.2 hectares (57 acres)	YES	Grendon Underwood 51°51′55″N 0°59′32″W / 51.8653°N 0.9921°W SP695190		Map	Citation
Hodgemoor Wood				102.6 hectares (254 acres)	YES	Chalfont St Giles 51°37′55″N 0°36′10″W / 51.6320°N 0.6028°W SU968935	CAONB,[49] FC[49]	Map	Citation
Hollowhill and Pullingshill Woods				23.0 hectares (57 acres)	YES	Marlow 51°34′07″N 0°48′55″W / 51.5687°N 0.8154°W SU822862	BBOWT,[50] CAONB,[51] WT[50]	Map	Citation
Homefield Wood				6.1 hectares (15 acres)	YES	Hambleden 51°34′24″N 0°49′42″W / 51.5733°N 0.8283°W SU813867	BBOWT,[52] CAONB,[53] FC[53]	Map	Citation
Howe Park Wood				21.4 hectares (53 acres)	YES	Tattenhoe 52°00′06″N 0°47′17″W / 52.0018°N 0.7880°W SP833344		Map	Citation
Ivinghoe Hills				212.3 hectares (525 acres)	YES	Ivinghoe 51°50′00″N 0°36′14″W / 51.8334°N 0.6038°W SP963159	CAONB,[54] NCR,[54] NT,[54] SM[54]	Map	Citation
Kingcup Meadows and Oldhouse Wood				13.2 hectares (33 acres)	YES	Denham 51°33′19″N 0°30′57″W / 51.5554°N 0.5157°W TQ030851		Map	Citation
Kings and Bakers Woods and Heaths				212.8 hectares (526 acres)	YES	Great Brickhill 51°57′23″N 0°39′19″W / 51.9563°N 0.6553°W		Map	Citation
Littleworth Common				15.8 hectares (39 acres)	YES	Farnham Common 51°34′01″N 0°39′09″W / 51.5669°N 0.6524°W SU935862		Map	Citation
Lodge Hill				31.8 hectares (79 acres)	YES	Bledlow Ridge 51°41′38″N 0°51′09″W / 51.6940°N 0.8526°W SP794001	CAONB,[55] SM[56]	Map	Citation
Long Herdon Meadow				4.5 hectares (11 acres)	YES	Marsh Gibbon 51°52′36″N 1°03′36″W / 51.8766°N 1.0601°W SP648202	BBOWT[57]	Map	Citation
Mid Colne Valley				132.0 hectares (326 acres)	YES	Denham 51°35′44″N 0°29′44″W / 51.5956°N 0.4956°W TQ043896		Map	Citation
Millfield Wood				9.5 hectares (23 acres)	YES	High Wycombe 51°39′03″N 0°44′38″W / 51.6507°N 0.7439°W SU870954	BBOWT,[58] CAONB[59]	Map	Citation
Moorend Common				28.0 hectares (69 acres)	YES	Lane End 51°36′27″N 0°50′36″W / 51.6076°N 0.8433°W SU802905	CAONB[60]	Map	Citation
Muswell Hill				0.3 hectares (0.74 acres)	YES	Brill 51°49′58″N 1°04′21″W / 51.8327°N 1.0726°W SP640153	GCR[61]	Map	Citation
Naphill Common				71.7 hectares (177 acres)	YES	Naphill 51°40′02″N 0°47′12″W / 51.6673°N 0.7868°W SU840972	CAONB,[62] NCR[62]	Map	Citation
Old Rectory Meadows				7.9 hectares (20 acres)	NO	Denham 51°34′34″N 0°30′39″W / 51.5760°N 0.5107°W TQ033874		Map	Citation
Oxley Mead				3.7 hectares (9.1 acres)	YES	Milton Keynes 52°00′20″N 0°48′30″W / 52.0056°N 0.8083°W SP819348		Map	Citation
Pilch Fields				11.1 hectares (27 acres)	YES	Great Horwood 51°59′00″N 0°54′49″W / 51.9832°N 0.9137°W SP747322	BBOWT[63]	Map	Citation
Pitstone Hill				22.9 hectares (57 acres)	YES	Ivinghoe 51°49′16″N 0°37′23″W / 51.8211°N 0.6231°W SP950145	CAONB[64]	Map	Citation
Pitstone Quarry				10.3 hectares (25 acres)	PP	Ivinghoe 51°49′13″N 0°38′52″W / 51.8204°N 0.6478°W SP933144		Map	Citation
Poker's Pond Meadow				1.9 hectares (4.7 acres)	NO	Soulbury 51°56′37″N 0°43′21″W / 51.9436°N 0.7226°W SP879280		Map	Citation
Rodbed Wood				2.2 hectares (5.4 acres)	FP	Medmenham 51°32′44″N 0°50′31″W / 51.5456°N 0.8420°W SU804836	CAONB[65]	Map	Citation
Rushbeds Wood and Railway Cutting				80.2 hectares (198 acres)	PP	Wotton Underwood 51°50′03″N 1°02′00″W / 51.8341°N 1.0334°W SP667155	BBOWT[66]	Map	Citation
Shabbington Woods Complex				305.6 hectares (755 acres)	YES	Long Crendon 51°47′39″N 1°06′35″W / 51.7943°N 1.1097°W SP615110	BBOWT,[67] FC[68]	Map	Citation
Sheephouse Wood				56.9 hectares (141 acres)	PP	Charndon 51°54′20″N 0°58′46″W / 51.9056°N 0.9795°W SP703235		Map	Citation
South Lodge Pit				0.5 hectares (1.2 acres)	NO	Taplow 51°31′44″N 0°41′46″W / 51.5290°N 0.6962°W SU905819	GCR[69]	Map	Citation
Stoke Common				83.2 hectares (206 acres)	YES	Stoke Poges 51°33′29″N 0°34′50″W / 51.5580°N 0.5806°W SU985853		Map	Citation
Stone				0.1 hectares (0.25 acres)	NO	Stone 51°48′24″N 0°52′23″W / 51.8066°N 0.8730°W SP778126	GCR[70]	Map	Citation
Swain's Wood				16.2 hectares (40 acres)	NO	Turville 51°37′19″N 0°56′02″W / 51.6220°N 0.9339°W SU739920	BBOWT,[44] CAONB[71]	Map	Citation
Temple Island Meadows				14.1 hectares (35 acres)	YES	Henley-on-Thames 51°33′22″N 0°53′32″W / 51.5560°N 0.8922°W SU769847		Map	Citation
Tingewick Meadows				11.1 hectares (27 acres)	YES	Tingewick 51°58′35″N 1°03′08″W / 51.9763°N 1.0522°W SP652313		Map	Citation
Tring Reservoirs				106.5 hectares (263 acres)	YES	Tring 51°48′49″N 0°40′06″W / 51.8135°N 0.6683°W SP919136	HMWT[72]	Map	Citation
Turville Hill				22.4 hectares (55 acres)	YES	High Wycombe 51°36′55″N 0°53′27″W / 51.6153°N 0.8907°W SU769913	CAONB[73]	Map	Citation
Warren Farm, Stewkley				1.5 hectares (3.7 acres)	NO	Stewkley 51°54′35″N 0°45′51″W / 51.9098°N 0.7643°W SP851242	GCR[74]	Map	Citation
Weston Turville Reservoir				18.4 hectares (45 acres)	YES	Weston Turville 51°46′42″N 0°45′07″W / 51.7784°N 0.7519°W SP862096	BBOWT,[75] CAONB[76]	Map	Citation
Widdenton Park Wood				23.5 hectares (58 acres)	YES	High Wycombe 51°36′59″N 0°49′17″W / 51.6164°N 0.8214°W SU817915	CAONB[77]	Map	Citation
Windsor Hill				61.8 hectares (153 acres)	PP	Princes Risborough 51°37′38″N 0°55′20″W / 51.6273°N 0.9222°W SU747926	BBOWT,[44] CAONB,[78] NCR[78]	Map	Citation
Wormsley Chalk Banks				14.1 hectares (35 acres)	PP	Turville 51°38′14″N 0°55′30″W / 51.6372°N 0.9249°W SU745937	CAONB[79]	Map	Citation
Yardley Chase				353.1 hectares (873 acres)	YES	Olney 52°10′33″N 0°45′14″W / 52.1759°N 0.7540°W SP853538		Map	Citation

See also

• List of Local Nature Reserves in Buckinghamshire

Notes

1. The area and grid reference are shown on the Natural England citation for each site.
2. The maps are provided by Natural England on the Magic Map website.
3. Citations are provided for each site by Natural England.

References

1. "South East (England)". Office for National Statistics. Retrieved 19 April 2016.
2. "Aylesbury". Visit Buckinghamshire. Retrieved 19 April 2016.
3. The Ordnance Survey Atlas of Great Britain. London, UK: Book Club Associates. 1982. p. 189.
4. "Your Guide to the Counties of England". Counties in England. Retrieved 9 December 2015.
5. "Buckinghamshire Quick Facts & Figures". Essential Travel Guide. Retrieved 19 April 2016.
6. "Sites of Special Scientific Interest: Designation". Natural England. Retrieved 19 April 2016.
7. "Sites of Special Scientific Interest, Search results for Buckinghamshire". Natural England. Retrieved 19 April 2016.
8. "Ashridge Commons and Woods citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 4 January 2016.
9. "Aston Clinton Ragpits citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 4 January 2016.
10. "Aston Rowant citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 4 January 2016.
11. Ratcliffe, Derek A. (1977). A Nature Conservation Review 2. Cambridge University Press. p. 121. ISBN 9780521214032.
12. "Aston Rowant". Joint Nature Conservation Committee. Retrieved 25 February 2016.
13. "Aston Rowant (SAC)". Natural England. Retrieved 25 February 2016.
14. "Chilterns Area of Outstanding Natural Beauty Management Plan 2014 - 2019" (PDF). Chilterns Conservation Board. April 2014. p. 14. Retrieved 4 January 2016.
15. Ratcliffe, Derek A. (1977). A Nature Conservation Review 2. Cambridge University Press. p. 53. ISBN 9780521214032.
16. Biodiversity Designations Background Paper. Wycombe District Council. June 2009. pp. 9, 10. Retrieved 19 April 2016.
17. "Chilterns Beechwoods". Joint Nature Conservation Committee. Retrieved 25 February 2016.
18. "Chilterns Beechwoods (SAC)". Natural England. Retrieved 25 February 2016.
19. "Bacombe Hill". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 4 January 2016.
20. "Bacombe Hill Local Nature Reserve". Chilterns Conservation Board. Retrieved 4 January 2015.
21. "Bacombe Hill". Local Nature Reserves. Natural England. 8 August 2013. Retrieved 4 January 2015.
22. "Chilterns Countryside". National Trust. Retrieved 28 September 2015.
23. "Bierton (Portlandian - Berriasian)". Nature Conservation Committee. Retrieved 9 January 2016.
24. "Black Park". Local Nature Reserves. Natural England. 4 June 2015. Retrieved 4 January 2016.
25. "Bolter End (Palaeogene)". Joint Nature Conservation Committee. Retrieved 5 February 2016.
26. "Bradenham Woods, Park Wood and The Coppice citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 8 January 2016.
27. "Bradenham Estate". National Trust. Retrieved 8 January 2016.
28. "Sections of Grims Ditch". Historic England. Retrieved 8 January 2016.
29. "Bugle Pit (Portlandian - Berriasian)". Joint Nature Conservation Committee. Retrieved 10 January 2016.
30. "Bugle Pit, Hartwell (Jurassic - Cretaceous Reptilia)". Joint Nature Conservation Committee. Retrieved 10 January 2016.
31. "Buckinghamshire's National Nature Reserve: Burnham Beeches". Natural England. Retrieved 13 October 2015.
32. "Burnham Beeches and Stoke Common". City of London. Retrieved 13 October 2015.
33. "Slight univallate hillfort at Seven Ways Plain, Burnham Beeches". Historic England. Retrieved 8 January 2016.
34. "Buttler's Hangings citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 18 February 2016.
35. "Dancersend". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 10 October 2015.
36. "Dancersend citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 10 October 2015.
37. "Dancersend Waterworks citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 10 October 2015.
38. "Cooling Pond, List entry Number: 1418490". Historic England. Retrieved 10 October 2015.
39. "Ellesborough and Kimble Warrens citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 6 January 2015.
40. "Pillow mound on Beacon Hill, 550m south of Ellesborough church. List entry Number: 101394". English Heritage. Retrieved 6 January 2015.
41. "Fayland Chalk Bank citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 6 February 2016.
42. "Fern House Gravel Pit (Quaternary of the Thames)". Joint Nature Conservation Committee. Retrieved 28 February 2016.
43. "Finemere Wood". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 9 January 2016.
44. "Permit only reserves". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 9 January 2016.
45. "The Chess Valley Walk" (PDF). Chilterns Conservation Board. Retrieved 9 January 2016.
46. "Gomm Valley". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 9 January 2015.
47. "Gomm Valley". Chilterns Conservation Board. Retrieved 9 January 2015.
48. "Grangelands and Pulpit Hill citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 10 January 2015.
49. "Hodgemoor Wood citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 25 September 2015.
50. "Community Wildlife Officer (Bucks)" (PDF). Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 28 September 2015.
51. "Pullingshill and Hollowhill Woods citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 28 September 2015.
52. "Homefield Wood". Berkshire, Buckinghamshire & Oxfordshire Wildlife Trust. Retrieved 29 September 2015.
53. "Homefield Wood citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 29 September 2015.
54. "Ivinghoe Hills citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 30 September 2015.
55. "Lodge Hill citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 30 September 2015.
56. "Bowl barrow on Lodge Hill, 650m east of Old Callow Down Farm". Historic England. Retrieved 9 January 2016.
57. "Upper Ray Meadows". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 5 March 2016.
58. "Millfield Wood". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 11 October 2015.
59. "Millfield Wood citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 11 October 2015.
60. "Moorend Common citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 11 October 2015.
61. "Muswell Hill (Wealden)". Joint Nature Conservation Committee. Retrieved 9 January 2016.
62. "Naphill Common citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 14 October 2015.
63. "Pilch Field". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 12 October 2015.
64. "Pitstone Hill citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 14 October 2015.
65. "Rodbed Wood citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 11 April 2016.
66. "Rushbeds Wood". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 15 March 2016.
67. "Bernwood Meadows". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 14 October 2015.
68. "Shabbington Woods Complex citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 14 October 2015.
69. "South Lodge Pit (Cenomanian, Turonian, Senonian, Maastrichtian)". Joint Nature Conservation Committee. Retrieved 29 February 2016.
70. "Stone (Wealden)". Joint Nature Conservation Committee. Retrieved 9 January 2016.
71. "Swain's Wood citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 12 October 2015.
72. "Tring Reservoirs". Herts and Middlesex Wildlife Trust. Retrieved 19 April 2015.
73. "Turville Hill citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 13 October 2015.
74. "Warren Farm (Portlandian - Berriasian)". Joint Nature Conservation Committee. Retrieved 20 March 2016.
75. "Weston Turville Reservoir". Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. Retrieved 13 October 2015.
76. "Weston Turville Reservoir". Chilterns Conservation Board. Retrieved 13 October 2015.
77. "Widdenton Park Wood citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 13 October 2015.
78. "Windsor Hill citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 14 October 2015.
79. "Wormsley Chalk Banks citation" (PDF). Sites of Special Scientific Interest. Natural England. Retrieved 11 February 2016.