This is a list of the Sites of Special Scientific Interest (SSSIs) in the former county of Avon, 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] Although the county of Avon no longer exists, Natural England still uses its former borders to mark one of its Areas of Search. As of 2006, there are 86 sites designated in this Area of Search, of which 38 have been designated due to their biological interest, 39 due to their geological interest, and 9 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. The English counties were revised under the 1974 reorganisation of local government. Until the 2010s, Natural England, which maintains the database of English SSSIs, kept the listing of counties as it was in 1974, but by 2015 they had updated their lists to reflect some later changes. However, even though Avon was abolished in 1996 it is still used as an area of search by Natural England, rather than being divided between the Gloucestershire and Somerset lists.^[3]

The data in the table is taken from English Nature 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]
Site name	Biological interest	Geological interest	Hectares	Acres	Grid reference^[B]	Year in which notified	Map^[C]
Ashton Court	Y		210.3	519.7	ST553723	1998	Map
Aust Cliff		Y	5.3	13.1	ST565894	1954	Map
Avon Gorge	Y	Y	155.4	384.0	ST560743	1952	Map
Banwell Caves	Y	Y	1.7	4.2	ST383588	1963	Map
Banwell Ochre Caves		Y	12.5	30.8	ST407593	1983	Map
Barnhill Quarry		Y	3.1	7.7	ST725827	1966	Map
Barns Batch Spinney		Y	0.1	0.2	ST557659	1987	Map
Bickley Wood		Y	9.5	23.5	ST644703	1988	Map
Biddle Street, Yatton	Y		44.8	110.7	ST423648	1994	Map
Bishop's Hill Wood	Y		30.6	75.6	ST733873	1984	Map
Blagdon Lake	Y		212.7	525.6	ST515597	1971	Map
Bleadon Hill		Y	13.5	33.4	ST705943	1999	Map
Bodkin Hazel Wood	Y		10.6	26.2	ST780850	1974	Map
Bourne		Y	8.5	20.9	ST484600	1992	Map
Bowlditch Quarry		Y	0.3	0.6	ST668558	1952	Map
Brinkmarsh Quarry		Y	0.5	1.2	ST674913	1974	Map
Brockley Hall Stables	Y		0.1	0.2	ST471669	1987	Map
Brown's Folly	Y	Y	39.9	98.5	ST793662	1974	Map
Buckover Road Cutting		Y	1.7	4.1	ST665906	1967	Map
Burledge Sidelands and Meadows	Y		48.7	120.3	ST588587	2005	Map
Burrington Combe	Y	Y	139.1	343.8	ST478583	1952	Map
Cattybrook Brickpit		Y	2.2	5.5	ST594835	1989	Map
Chew Valley Lake	Y		565.2	1,396.6	ST570600	1971	Map
Cleaves Wood	Y		40.4	99.8	ST758576	1988	Map
Cleeve Wood, Hanham	Y		8.9	21.9	ST655703	1966	Map
Clevedon Shore		Y	0.4	0.9	ST402719	1991	Map
Combe Down and Bathampton Down Mines	Y		6.2	15.4	ST761625	1991	Map
Compton Martin Ochre Mine	Y	Y	0.9	2.1	ST545570	1988	Map
Congrove Field and The Tumps	Y		12.5	30.8	ST713698	1991	Map
Court Hill		Y	10.5	25.8	ST436722	1997	Map
Cullimore's Quarry		Y	0.9	2.2	ST721927	1974	Map
Damery Road Section		Y	0.5	1.0	ST705943	1974	Map
Dolebury Warren	Y		90.6	223.3	ST455590	1952	Map
Dundry Main Road South Quarry		Y	0.7	1.8	ST566654	1974	Map
Ellenborough Park West	Y		1.8	4.4	ST319608	1989	Map
Folly Farm	Y		3.1	7.7	ST607604	1987	Map
Goblin Combe	Y		51.9	128.2	ST473652	1999	Map
Gordano Valley	Y	Y	161.7	399.5	ST435730	1971	Map
Ham Green		Y	1.1	2.7	ST539738	1990	Map
Hampton Rocks Cutting		Y	1.3	3.2	ST779666	1990	Map
Harptree Combe	Y		13.1	32.3	ST561558	1954	Map
Hartcliff Rocks Quarry		Y	1.6	3.9	ST534662	1991	Map
Hawkesbury Meadow	Y		3.3	8.2	ST754874	1987	Map
Hawkesbury Quarry		Y	0.3	0.6	ST771873	1967	Map
Hinton Charterhouse Field	Y		0.3	0.8	ST764574	1991	Map
Hinton Charterhouse Pit		Y	0.4	1.0	ST772573	1971	Map
Hinton Hill, Wellow		Y	0.3	0.6	ST757582	1996	Map
Holly Lane		Y	0.5	1.2	ST419727	1990	Map
Horseshoe Bend, Shirehampton	Y		4.5	11.0	ST542767	1999	Map
Huish Colliery Quarry		Y	0.8	2.1	ST695542	1985	Map
Iford Manor	Y		0.4	1.0	ST802589	1996	Map
Kenn Church, Kenn Pier & Yew Tree Farm		Y	15.4	38.0	ST415689	1997	Map
Kilmersdon Road Quarry		Y	0.4	1.1	ST689542	1954	Map
King's Wood and Urchin Wood	Y		128.1	316.5	ST454645	1990	Map
Long Dole Wood and Meadows^[F]	Y		9.8	24.3	ST610562	1997	Map
Lower Woods	Y	Y	280.1	692.2	ST743876	1966	Map
Lulsgate Quarry		Y	1.1	2.8	ST516659	1997	Map
Max Bog	Y		10.6	26.2	ST406574	1988	Map
Middle Hope	Y	Y	84.1	207.8	ST325662	1952	Map
Midger	Y		65.7	162.3	ST797895	1966	Map
Monkswood Valley	Y		30.7	75.9	ST754710	1990	Map
Newton St. Loe		Y	2.3	5.6	ST715657	1992	Map
Nightingale Valley		Y	5.4	13.3	ST449751	1989	Map
North Road Quarry, Bath		Y	0.3	0.7	ST767646	1990	Map
Plaster's Green Meadows	Y		4.3	10.6	ST532611	1989	Map
Portishead Pier to Black Nore		Y	71.8	177.4	ST474778	1952	Map
Purn Hill	Y		6.1	15.1	ST412630	1990	Map
Puxton Moor	Y		31.1	76.8	ST412630	1994	Map
Quarry Steps, Durdham Down ^[D]		Y	<0.1	<0.1	ST573747	1990	Map
Severn Estuary ^[E]	Y	Y	15,950.0	39,410.0	ST480830	1976	Map
Shiplate Slait	Y		33.9	83.8	ST365567	1987	Map
Slickstones Quarry, Cromhall		Y	2.7	6.6	ST704916	1966	Map
Spring Cove Cliffs		Y	2.0	4.9	ST310625	1952	Map
St. Catherine's Valley	Y		156.1	385.7	ST760725	1997	Map
Steep Holm	Y		25.5	63.0	ST228607	1952	Map
Stidham Farm		Y	17.3	42.8	ST682684	1991	Map
Tickenham, Nailsea and Kenn Moors	Y		129.4	319.7	ST440700	1995	Map
Tytherington Quarry		Y	0.9	2.2	ST662888	1989	Map
Uphill Cliff	Y		19.8	48.9	ST318583	1952	Map
Upton Coombe	Y		7.4	18.3	ST789877	1989	Map
Walton Common	Y		25.5	63.0	ST428738	1991	Map
Weston Big Wood	Y		37.5	92.6	ST455750	1971	Map
Weston-in-Gordano		Y	12.6	31.0	ST452744	1993	Map
Winterbourne Railway Cutting		Y	2.0	4.9	ST651799	1990	Map
Writhlington		Y	0.5	1.2	ST703553	1992	Map
Yanal Bog	Y		1.6	4.0	ST424607	1988	Map

Notes

References

^ "Notification of SSSIs". English Nature. Archived from the original on 15 May 2012. Retrieved 1 August 2006.
^ "SSSIs in Avon". English Nature. Retrieved 1 August 2006.
^ "Site Search". designatedsites.naturalengland.org.uk. Retrieved 29 November 2020.

^ ^a ^b ^c ^d English Nature citation sheets for each SSSI (PDF files). Retrieved on 2006-08-05.

"Ashton Court" (PDF).
"Aust Cliff" (PDF).
"Avon Gorge" (PDF).
"Banwell Caves" (PDF).
"Banwell Ochre Caves" (PDF).
"Barnhill Quarry" (PDF).
"Barns Batch Spinney" (PDF).
"Bickley Wood" (PDF).
"Biddle Street, Yatton" (PDF).
"Bishop's Hill Wood" (PDF).
"Blagdon Lake" (PDF). Archived from the original (PDF) on 24 October 2012.
"Bleadon Hill" (PDF).
"Bodkin Hazel Wood" (PDF).
"Bourne" (PDF).
"Bowlditch Quarry" (PDF).
"Brinkmarsh Quarry" (PDF).
"Brockley Hall Stables" (PDF).
"Brown's Folly" (PDF).
"Buckover Road Cutting" (PDF).
"Burledge Sidelands and Meadows" (PDF).
"Burrington Combe" (PDF).
"Cattybrook Brickpit" (PDF).
"Chew Valley Lake" (PDF). Archived from the original (PDF) on 24 September 2015.
"Cleaves Wood" (PDF).
"Cleeve Wood, Hanham" (PDF).
"Clevedon Shore" (PDF).
"Combe Down And Bathampton Down Mines" (PDF).
"Compton Martin Ochre Mine" (PDF).
"Congrove Field And The Tumps" (PDF).

"Court Hill" (PDF).
"Cullimore's Quarry" (PDF).
"Damery Road Section" (PDF).
"Dolebury Warren" (PDF).
"Dundry Main Road South Quarry" (PDF).
"Ellenborough Park West" (PDF).
"Folly Farm" (PDF).
"Goblin Combe" (PDF).
"Gordano Valley" (PDF). Archived from the original (PDF) on 24 October 2012.
"Ham Green" (PDF).
"Hampton Rocks Cutting" (PDF).
"Harptree Combe" (PDF). Archived from the original (PDF) on 24 October 2012.
"Hartcliff Rocks Quarry" (PDF). Archived from the original (PDF) on 24 March 2012.
"Hawkesbury Meadow" (PDF).
"Hawkesbury Quarry" (PDF).
"Hinton Charterhouse Field" (PDF).
"Hinton Charterhouse Pit" (PDF).
"Hinton Hill, Wellow" (PDF).
"Holly Lake" (PDF).
"Horseshoe Bend, Shirehampton" (PDF).
"Huish Colliery Quarry" (PDF).
"Iford Manor" (PDF).
"Kenn Church, Kenn Pier and Yew Tree Farm" (PDF).
"Kilmersdon Road Quarry" (PDF).
"King's Wood and Urchin Wood" (PDF).
"Long Dole Wood and Meadows" (PDF).
"Lower Woods" (PDF).
"Lulsgate Quarry" (PDF).
"Max Bog" (PDF).

"Middle Hope" (PDF).
"Midger" (PDF).
"Monkswood Valley" (PDF).
"Newton St Loe" (PDF).
"Nightingale Valley" (PDF).
"North Road Quarry, Bath" (PDF).
"Plaster's Green Meadows" (PDF).
"Portishead Pier to Black Nore" (PDF).
"Purn Hill" (PDF).
"Puxton Moor" (PDF).
"Quarry Steps, Durdham Down" (PDF).
"Severn Estuary" (PDF).
"Shiplate Slait" (PDF).
"Slickstones Quarry, Cromhall" (PDF).
"Spring Cove Cliffs" (PDF).
"St Catherine's Valley" (PDF).
"Steep Holm" (PDF).
"Stidham Farm" (PDF).
"Tickenham, Nailsea and Kenn Moors" (PDF).
"Tytherington Quarry" (PDF).
"Uphill Cliff" (PDF).
"Upton Coombe" (PDF).
"Walton Common" (PDF).
"Weston Big Wood" (PDF).
"Weston-in-Gordano" (PDF).
"Winterbourne Railway Cutting" (PDF).
"Writhlington" (PDF).
"Yanal Bog" (PDF).

^ "Guide to National Grid". Ordnance Survey. Archived from the original on 27 October 2007. Retrieved 7 August 2006.

Geological Sites of Special Scientific Interest in North Somerset

Neighbouring areas: Gloucestershire; Somerset; Wiltshire

v t e SSSIs in the United Kingdom, grouped by Area of Search
England	Avon Bedfordshire Berkshire Buckinghamshire Cambridgeshire Cheshire Cleveland Cornwall County Durham Cumbria Derbyshire Devon Dorset East Riding of Yorkshire East Sussex Essex Gloucestershire Greater London Greater Manchester Hampshire Herefordshire Hertfordshire Isle of Wight Kent Lancashire Leicestershire Lincolnshire Merseyside Norfolk North Yorkshire Northamptonshire Northumberland Nottinghamshire Oxfordshire Rutland Shropshire Somerset South Yorkshire Staffordshire Suffolk Surrey Tyne and Wear Warwickshire West Midlands West Sussex West Yorkshire Wiltshire Worcestershire
Scotland	Angus and Dundee Annandale and Eskdale Badenoch and Strathspey Banff and Buchan Berwickshire and Roxburgh Caithness Clydesdale and South East Glasgow Cumnock and Kyle Dumbarton and North Glasgow Dunfermline and Kirkcaldy East Perth East Ross and Cromarty Edinburgh and West Lothian Falkirk and Clackmannan Gordon and Aberdeen Inverness Islay and Jura Kincardine and Deeside Kintyre Lorne Mid and East Lothian Mid Argyll and Cowal Moray and Nairn Mull, Coll and Tiree Nithsdale North East Fife North Lochaber North West Sutherland North Wester Ross and Cromarty Orkney Renfrew and Cunninghame Rum and the Small Isles Shetland Skye and Lochalsh South East Sutherland South Lochaber South Perth South Wester Ross and Cromarty Stirling Tweeddale and Ettrick and Lauderdale West Perth Western Isles North Western Isles South Wigtown and Stewartry
Wales	Brecknock Carmarthen & Dinefwr Ceredigion Clwyd East Gwynedd Gwent Mid & South Glamorgan Montgomery Preseli & South Pembrokeshire Radnor West Glamorgan West Gwynedd
Northern Ireland	County Antrim County Armagh County Down County Fermanagh County Londonderry County Tyrone