This is a list of the Sites of Special Scientific Interest (SSSIs) in the Denbighshire Area of Search (AoS).^[1]

Sites

Afon Dyfrdwy (River Dee) SSSI
Alyn Valley Woods and Alyn Gorge Caves
Berwyn
Bryn Alyn
Caeau Pen-y-coed
Cefn Rofft
Cambrian Quarry (Chwarel Cambrian), Gwernymynydd
Chwarel Pant Glas
Cil-y-groeslwyd Woods, Eyarth Woods & Rocks & Craig Adwy-wynt
Clogau Quarry
Coed Nant Mawr
Coedydd ac Ogofau Elwy a Meirchion
Coedydd Dyffryn Alwen
Crest Mawr Wood
Cynwyd Forest Quarry
Dee Estuary
Dinas Bran
Ffynnon Beuno and Cae Gwyn Caves
Graig Fawr
Graig Quarry
Graig, Llanarmon-yn-Ial
Gronant Dunes and Talacre Warren
Hendre Bach
Llandegla Moor (in both Denbighshire and Flintshire)
Llwyn
Maes Hiraddug
Moel Hiraddug Quarries
Mwyngloddfa Pennant
Mynydd Hiraethog
Penarth Quarry
Prestatyn Hillside
Ruabon/Llantysilio Mountains and Minera

References

^ "Find protected areas of land and sea". Natural Resources Wales. Retrieved 9 January 2022.

v t e Denbighshire
Principal settlements	Corwen Denbigh Llangollen Prestatyn Rhuddlan Rhyl Ruthin St Asaph
Communities	Aberwheeler Betws Gwerfil Goch Bodelwyddan Bodfari Bryneglwys Cefn Meiriadog Clocaenog Corwen Cwm Cyffylliog Cynwyd Denbigh Derwen Dyserth Efenechtyd Gwyddelwern Henllan Llanarmon-yn-Iâl Llanbedr Dyffryn Clwyd Llandegla Llandrillo Llandyrnog Llanelidan Llanfair Dyffryn Clwyd Llanferres Llangollen Llangynhafal Llanrhaeadr-yng-Nghinmeirch Llantysilio Llanynys Nantglyn Prestatyn Rhuddlan Rhyl Ruthin St Asaph Trefnant Tremeirchion Waen
Villages	Aberwheeler Berwyn Betws Gwerfil Goch Bodelwyddan Bodfari Bontuchel Bryneglwys Carrog Castell Cefnmeriadog Clawdd Poncen Clocaenog Clawddnewydd Crogen Cwm Cyffylliog Cynwyd Derwen Druid Dyserth Efenechtyd Gellifor Gellioedd Glasfryn Glyndyfrdwy Gronant Gwyddelwern Henllan Hirwaen Llanarmon-yn-Iâl Llanbedr Dyffryn Clwyd Llandegla Llandrillo Llandyrnog Llanelidan Llanferres Llanfwrog Llangar Llangwyfan Llangynhafal Llanrhaeadr-yng-Nghinmeirch Llansanffraid Glyndyfrdwy Llantysilio Llanychan Llanynys Loggerheads Maerdy Meliden Nantglyn Prion Pwllglas Pentrecelyn Rhewl Rhuallt Saron Tafarn Y Gelyn Trefnant Tremeirchion
Oldest inhabited location	Bontnewydd Palaeolithic site
Geography	Berwyn range Clwydian Range Clwydian Range and Dee Valley AONB Denbigh Moors Eglwyseg Vale of Clwyd World's End
Topics	List of parliamentary constituencies in Clwyd Schools Country houses SSSIs Scheduled Monuments Listed buildings Grade I Grade II* The historic county Lord Lieutenants High Sheriffs Public art
Geography Wales

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