# List of scheduled monuments in Conwy County Borough

Conwy County Borough is on the north coast of Wales, and has a heavily populated coastal strip. A third of the county is within the Snowdonia National Park. There are a total of 161 scheduled monuments in the county. 106 of these are Prehistoric, including at least six Neolithic sites. Like much of Wales, there are large numbers of Bronze Age sites, particularly burial mounds, and some 40 Iron Age sites including hillforts and hut groups. There are just three Roman sites, and six early medieval (Pre-Norman Conquest), all of which are early Christian monuments, including inscribed stones and a holy well. From the post-Norman medieval period, the castle and walls of Conwy itself are part of a World Heritage Site. There are numerous other fortified sites, along with lost villages, ruined chapels and a Bishop's palace amongst the 24 medieval sites. In the post-medieval period, there are two sites, including churches, bridges, lead mines and World War II defences. Conwy is made up of parts of the historic counties of Denbighshire and Caernarvonshire, which are covered respectively by the Clwyd-Powys Archaeological Trust (CPAT) and Gwyneth Archaeological Trust.
Scheduled monuments have statutory protection. It is illegal to disturb the ground surface or any standing remains. The compilation of the list of sites is undertaken by Cadw Welsh Historic Monuments, which is an executive agency of the National Assembly of Wales. The list of scheduled monuments below is supplied by Cadw with additional material from RCAHMW and Clwyd-Powys and Gwynedd Archaeological Trusts.

## Scheduled monuments in Conwy

| Name | Site type | Community | Location | Details | Historic County | Period | SAM No & Refs |
| Ogof Tan-y-Bryn | Cave | Llandudno | 53°19′04″N 3°48′13″W﻿ / ﻿53.3177°N 3.8037°W﻿ / 53.3177; -3.8037﻿ (Ogof Tan-y-Bryn), SH799816 | | Caernarvonshire | 1Prehistoric (Palaeolithic) | CN204 |
| Capel Garmon Burial Chamber | Chambered long cairn | Bro Garmon | 53°04′23″N 3°45′57″W﻿ / ﻿53.073°N 3.7658°W﻿ / 53.073; -3.7658﻿ (Capel Garmon Burial Chamber), SH817543 | | Denbighshire | 1.1Prehistoric (Neolithic) | DE001 |
| Maen y Bardd Burial Chamber | Chambered long cairn | Caerhun | 53°13′41″N 3°53′17″W﻿ / ﻿53.2281°N 3.888°W﻿ / 53.2281; -3.888﻿ (Maen y Bardd Burial Chamber), SH740717 | A classic neolithic burial chamber, which translates as the bard's stone although it is also known as Cwt-y-Bugail (shepherd's hut) and Cwt-y-filiast (greyhound's kennel). It is beside a track near Rowen, Conwy, amongst numerous later prehistoric sites. | Caernarvonshire | 1.1Prehistoric (Neolithic) | CN027 |
| Kendricks Cave | Cave | Llandudno | 53°19′42″N 3°50′01″W﻿ / ﻿53.3283°N 3.8336°W﻿ / 53.3283; -3.8336﻿ (Kendricks Cave & Upper Kendricks Cave), SH779828 | Two caves on the Great Orme. The lower was excavated in 1880 by Thomas Kendrick, who lived in the upper cave. Decorated animal bone, tooth necklaces and human remains were among the finds dating from the neolithic onwards. | Caernarvonshire | 1.1Prehistoric (Neolithic and after) | CN191 |
| Llandudno Burial Chamber | Chambered long cairn | Llandudno | 53°19′45″N 3°50′43″W﻿ / ﻿53.3292°N 3.8452°W﻿ / 53.3292; -3.8452﻿ (Llandudno Burial Chamber), SH772829 | Also known as Llety'r Filiast Chambered Tomb, this neolithic tomb is close to the Great Orme tramway | Caernarvonshire | 1.1Prehistoric | CN005 |
| Ogof Pant-y-Wennol | Cave | Llandudno | 53°19′05″N 3°47′26″W﻿ / ﻿53.318°N 3.7906°W﻿ / 53.318; -3.7906﻿ (Ogof Pant-y-Wennol), SH808816 | Limestone cave with 6 neolithic burials, found encased in stalagmite. | Caernarvonshire | 1.1Prehistoric (Neolithic) | CN190 |
| Round Barrow East of Corby | Round barrow | Betws yn Rhos | 53°15′44″N 3°43′38″W﻿ / ﻿53.2622°N 3.7272°W﻿ / 53.2622; -3.7272﻿ (Round Barrow East of Corby), SH848753 | | Denbighshire | 1.3Prehistoric | DE285 |
| Maen-Pebyll Burial Chamber | Long cairn | Bro Garmon | 53°05′40″N 3°43′41″W﻿ / ﻿53.0944°N 3.7281°W﻿ / 53.0944; -3.7281﻿ (Maen-Pebyll Burial Chamber), SH843566 | | Denbighshire | 1.3Prehistoric | DE004 |
| Y Foel Cairns | Round cairn | Bro Machno | 53°02′21″N 3°47′19″W﻿ / ﻿53.0392°N 3.7886°W﻿ / 53.0392; -3.7886﻿ (Y Foel Cairns), SH801506 | | Caernarvonshire | 1.3Prehistoric | CN378 |
| Afon Dulyn ring cairn | Ring cairn | Caerhun | 53°11′20″N 3°53′48″W﻿ / ﻿53.1888°N 3.8968°W﻿ / 53.1888; -3.8968﻿ (Afon Dulyn ring cairn), SH733674 | | Caernarvonshire | 1.3Prehistoric | CN357 |
| Barclodiad-y-Gawres Round Cairn | Round cairn | Caerhun | 53°13′33″N 3°55′22″W﻿ / ﻿53.2259°N 3.9227°W﻿ / 53.2259; -3.9227﻿ (Barclodiad-y-Gawres Round Cairn), SH717716 | | Caernarvonshire | 1.3Prehistoric | CN131 |
| Bwlch y Ddeufaen Standing Stones | Standing stone | Caerhun | 53°13′40″N 3°55′37″W﻿ / ﻿53.2278°N 3.927°W﻿ / 53.2278; -3.927﻿ (Bwlch y Ddeufaen Standing Stones), SH714718 | | Caernarvonshire | 1.3Prehistoric | CN129 |
| Cerrig Pryfaid Stone Circle | Stone circle | Caerhun | 53°13′25″N 3°54′43″W﻿ / ﻿53.2237°N 3.9119°W﻿ / 53.2237; -3.9119﻿ (Cerrig Pryfaid Stone Circle), SH724713 | | Caernarvonshire | 1.3Prehistoric | CN130 |
| Ffrith Llwynhwfa Burial Cairn | Cairn | Caerhun | 53°13′58″N 3°53′03″W﻿ / ﻿53.2329°N 3.8843°W﻿ / 53.2329; -3.8843﻿ (Ffrith Llwynhwfa Burial Cairn), SH743723 | | Caernarvonshire | 1.3Prehistoric | CN317 |
| Afon Bedol cairn and standing stone | Round cairn | Capel Curig | 53°07′43″N 3°56′12″W﻿ / ﻿53.1286°N 3.9368°W﻿ / 53.1286; -3.9368﻿ (Afon Bedol cairn and standing stone), SH705607 | | Caernarvonshire | 1.3Prehistoric | CN360 |
| Afon Bedol cist | Cist burial | Capel Curig | 53°07′43″N 3°56′07″W﻿ / ﻿53.1287°N 3.9353°W﻿ / 53.1287; -3.9353﻿ (Afon Bedol cist), SH706608 | | Caernarvonshire | 1.3Prehistoric | CN361 |
| Afon Ystymiau, cairns to N of | Round cairn | Capel Curig | 53°04′42″N 3°53′20″W﻿ / ﻿53.0782°N 3.8888°W﻿ / 53.0782; -3.8888﻿ (Afon Ystymiau, cairns to N of), SH735551 | | Caernarvonshire | 1.3Prehistoric | CN379 |
| Bwlch Cowlyd cairn | Round cairn | Capel Curig | 53°07′43″N 3°55′41″W﻿ / ﻿53.1286°N 3.928°W﻿ / 53.1286; -3.928﻿ (Bwlch Cowlyd cairn), SH710607 | | Caernarvonshire | 1.3Prehistoric | CN362 |
| Capel Curig cairn | Round cairn | Capel Curig | 53°06′06″N 3°53′43″W﻿ / ﻿53.1018°N 3.8954°W﻿ / 53.1018; -3.8954﻿ (Capel Curig cairn), SH731577 | | Caernarvonshire | 1.3Prehistoric | CN363 |
| Carnedd Dafydd cairn | Round cairn | Capel Curig, (also Llanllechid), (see also Gwynedd) | 53°08′52″N 4°00′03″W﻿ / ﻿53.1477°N 4.0008°W﻿ / 53.1477; -4.0008﻿ (Carnedd Dafydd cairn), SH662630 | | Caernarvonshire | 1.3Prehistoric | CN367 |
| Carnedd Dafydd, cairn to SW of | Round cairn | Capel Curig, (also Llanllechid), (see also Gwynedd) | 53°08′48″N 4°00′10″W﻿ / ﻿53.1466°N 4.0029°W﻿ / 53.1466; -4.0029﻿ (Carnedd Dafydd, cairn to SW of), SH661629 | | Caernarvonshire | 1.3Prehistoric | CN368 |
| Carnedd Fach cairn | Round cairn | Capel Curig, (also Llanllechid), (see also Gwynedd) | 53°08′38″N 4°00′28″W﻿ / ﻿53.1438°N 4.0079°W﻿ / 53.1438; -4.0079﻿ (Carnedd Fach cairn), SH657626 | | Caernarvonshire | 1.3Prehistoric | CN366 |
| Carnedd Llewelyn cairn | Round cairn | Capel Curig, (also Llanllechid), (also Caerhun), (see also Gwynedd) | 53°09′37″N 3°58′13″W﻿ / ﻿53.1602°N 3.9703°W﻿ / 53.1602; -3.9703﻿ (Carnedd Llewelyn cairn), SH683643 | | Caernarvonshire | 1.3Prehistoric | CN371 |
| Dyffryn Mymbyr cairn circle | Cairn circle | Capel Curig | 53°05′22″N 3°57′50″W﻿ / ﻿53.0894°N 3.9639°W﻿ / 53.0894; -3.9639﻿ (Dyffryn Mymbyr cairn circle), SH685564 | | Caernarvonshire | 1.3Prehistoric | CN372 |
| Nant y Benglog cairn | Round cairn | Capel Curig | 53°07′21″N 3°56′00″W﻿ / ﻿53.1224°N 3.9332°W﻿ / 53.1224; -3.9332﻿ (Nant y Benglog cairn), SH707601 | | Caernarvonshire | 1.3Prehistoric | CN370 |
| Hafotty Wen Ring Cairn | Ring cairn | Cerrigydrudion | 53°04′14″N 3°31′47″W﻿ / ﻿53.0706°N 3.5297°W﻿ / 53.0706; -3.5297﻿ (Hafotty Wen Ring Cairn), SH976536 | | Denbighshire | 1.3Prehistoric | DE283 |
| Ffrith-Uchaf Round Cairn | Round cairn | Conwy | 53°07′29″N 3°42′12″W﻿ / ﻿53.1248°N 3.7033°W﻿ / 53.1248; -3.7033﻿ (Ffrith-Uchaf Round Cairn), SH861599 | | Denbighshire | 1.3Prehistoric | DE118 |
| Ring Cairn North-West of Llyn y Wrach | Ring cairn | Conwy | 53°15′52″N 3°52′52″W﻿ / ﻿53.2644°N 3.8811°W﻿ / 53.2644; -3.8811﻿ (Ring Cairn North-West of Llyn y Wrach), SH746758 | | Caernarvonshire | 1.3Prehistoric | CN260 |
| Cae Du platform cairn | Platform Cairn | Dolgarrog | 53°10′40″N 3°52′07″W﻿ / ﻿53.1779°N 3.8687°W﻿ / 53.1779; -3.8687﻿ (Cae Du platform cairn), SH752661 | | Caernarvonshire | 1.3Prehistoric | CN365 |
| Mwdwl Eithin Round Barrows | Round barrow | Eglwysbach | 53°11′51″N 3°45′17″W﻿ / ﻿53.1976°N 3.7548°W﻿ / 53.1976; -3.7548﻿ (Mwdwl Eithin Round Barrows), SH828681 | | Denbighshire | 1.3Prehistoric | DE046 |
| Cefn Llechen Cairns | Round cairn | Henryd | 53°15′32″N 3°53′08″W﻿ / ﻿53.2589°N 3.8856°W﻿ / 53.2589; -3.8856﻿ (Cefn Llechen Cairns), SH743752 | | Caernarvonshire | 1.3Prehistoric | CN353 |
| Cefn Llechen Stone Circle | Stone circle | Henryd | 53°15′36″N 3°52′45″W﻿ / ﻿53.26°N 3.8792°W﻿ / 53.26; -3.8792﻿ (Cefn Llechen Stone Circle), SH747753 | | Caernarvonshire | 1.3Prehistoric | CN124 |
| Cefn Maen Amor cairn | Round cairn | Henryd | 53°14′40″N 3°53′31″W﻿ / ﻿53.2444°N 3.892°W﻿ / 53.2444; -3.892﻿ (Cefn Maen Amor cairn), SH738735 | | Caernarvonshire | 1.3Prehistoric | CN354 |
| Cefn Maen Amor stone circle | Stone circle | Henryd | 53°14′39″N 3°53′30″W﻿ / ﻿53.2443°N 3.8916°W﻿ / 53.2443; -3.8916﻿ (Cefn Maen Amor stone circle), SH738735 | | Caernarvonshire | 1.3Prehistoric | CN355 |
| Hafotty Standing Stone | Standing stone | Henryd | 53°15′24″N 3°52′42″W﻿ / ﻿53.2568°N 3.8784°W﻿ / 53.2568; -3.8784﻿ (Hafotty Standing Stone), SH747749 | | Caernarvonshire | 1.3Prehistoric | CN116 |
| Maen Penddu | Standing stone | Henryd | 53°14′39″N 3°53′28″W﻿ / ﻿53.2442°N 3.8911°W﻿ / 53.2442; -3.8911﻿ (Maen Penddu), SH739735 | | Caernarvonshire | 1.3Prehistoric | CN126 |
| Great Orme Copper Mines | Copper mine | Llandudno | 53°19′52″N 3°50′54″W﻿ / ﻿53.331°N 3.8482°W﻿ / 53.331; -3.8482﻿ (Great Orme Copper Mines), SH770831 | | Caernarvonshire | 1.3Prehistoric | CN216 |
| Hwylfa'r Ceirw Stone Alignment | Stone alignment | Llandudno | 53°20′21″N 3°51′19″W﻿ / ﻿53.3393°N 3.8554°W﻿ / 53.3393; -3.8554﻿ (Hwylfa'r Ceirw Stone Alignment), SH765840 | | Caernarvonshire | 1.3Prehistoric | CN132 |
| Bryniau Bugeilydd cairns | Ring cairn | Llanfairfechan | 53°14′52″N 3°55′20″W﻿ / ﻿53.2478°N 3.9223°W﻿ / 53.2478; -3.9223﻿ (Bryniau Bugeilydd cairns), SH718740 | | Caernarvonshire | 1.3Prehistoric | CN352 |
| Cerrig Gwynion cairn | Round cairn | Llanfairfechan | 53°14′41″N 3°54′57″W﻿ / ﻿53.2446°N 3.9158°W﻿ / 53.2446; -3.9158﻿ (Cerrig Gwynion cairn), SH722736 | | Caernarvonshire | 1.3Prehistoric | CN350 |
| Foel Lwyd, cairn to N of | Round cairn | Llanfairfechan | 53°14′30″N 3°55′11″W﻿ / ﻿53.2416°N 3.9198°W﻿ / 53.2416; -3.9198﻿ (Foel Lwyd, cairn to N of), SH719733 | | Caernarvonshire | 1.3Prehistoric | CN349 |
| Foel Lwyd, cairn to NW of | Round cairn | Llanfairfechan | 53°14′10″N 3°55′42″W﻿ / ﻿53.2361°N 3.9284°W﻿ / 53.2361; -3.9284﻿ (Foel Lwyd, cairn to NW of), SH713727 | | Caernarvonshire | 1.3Prehistoric | CN348 |
| Waun Llanfair barrow | Round barrow | Llanfairfechan | 53°14′54″N 3°56′31″W﻿ / ﻿53.2483°N 3.942°W﻿ / 53.2483; -3.942﻿ (Waun Llanfair barrow), SH705741 | | Caernarvonshire | 1.3Prehistoric | CN351 |
| Yr Orsedd, cairn to NNW of | Round cairn | Llanfairfechan | 53°13′48″N 3°57′45″W﻿ / ﻿53.2299°N 3.9625°W﻿ / 53.2299; -3.9625﻿ (Yr Orsedd, cairn to NNW of), SH690721 | | Caernarvonshire | 1.3Prehistoric | CN341 |
| Mwdwl Eithin Round Cairn | Round cairn | Llanfihangel Glyn Myfyr | 53°00′38″N 3°30′27″W﻿ / ﻿53.0106°N 3.5075°W﻿ / 53.0106; -3.5075﻿ (Mwdwl Eithin Round Cairn), SH989469 | | Denbighshire | 1.3Prehistoric | DE281 |
| Moel Fodiar Tumuli | Round barrow | Llannefydd | 53°11′57″N 3°31′51″W﻿ / ﻿53.1992°N 3.5309°W﻿ / 53.1992; -3.5309﻿ (Moel Fodiar Tumuli), SH978680 | | Denbighshire | 1.3Prehistoric | DE282 |
| Hendre-Waelod Burial Chamber | Chambered long cairn | Llansanffraid Glan Conwy | 53°15′22″N 3°48′40″W﻿ / ﻿53.256°N 3.811°W﻿ / 53.256; -3.811﻿ (Hendre-Waelod Burial Chamber), SH792747 | Also known as Allor Moloch, this dolmen has a huge capstone, and is beside a footpath, overlooking the Conwy Estuary | Denbighshire | 1.3Prehistoric | DE125 |
| Blaen y Cwm Round Barrow | Round barrow | Llansannan | 53°08′05″N 3°35′14″W﻿ / ﻿53.1347°N 3.5872°W﻿ / 53.1347; -3.5872﻿ (Blaen y Cwm Round Barrow), SH939609 | | Denbighshire | 1.3Prehistoric | DE124 |
| Bryn-Nantllech Round Barrow | Round barrow | Llansannan | 53°12′08″N 3°35′26″W﻿ / ﻿53.2022°N 3.5906°W﻿ / 53.2022; -3.5906﻿ (Bryn-Nantllech Round Barrow), SH938684 | | Denbighshire | 1.3Prehistoric | DE187 |
| Bylchau Church Round Barrows | Round barrow | Llansannan | 53°09′14″N 3°31′57″W﻿ / ﻿53.1539°N 3.5326°W﻿ / 53.1539; -3.5326﻿ (Bylchau Church Round Barrows), SH976629 | | Denbighshire | 1.3Prehistoric | DE036 |
| Plas-Newydd Round Barrow | Round barrow | Llansannan | 53°11′05″N 3°34′38″W﻿ / ﻿53.1846°N 3.5772°W﻿ / 53.1846; -3.5772﻿ (Plas-Newydd Round Barrow), SH947664 | | Denbighshire | 1.3Prehistoric | DE101 |
| Rhiwiau round barrow cemetery | Round barrow | Llansannan | 53°07′57″N 3°34′44″W﻿ / ﻿53.1324°N 3.5788°W﻿ / 53.1324; -3.5788﻿ (Rhiwiau round barrow cemetery), SH944606 | | Denbighshire | 1.3Prehistoric | DE100 |
| Rhos y Domen Round Barrows | Round barrow | Llansannan | 53°09′47″N 3°38′48″W﻿ / ﻿53.1631°N 3.6468°W﻿ / 53.1631; -3.6468﻿ (Rhos y Domen Round Barrows), SH900641 | | Denbighshire | 1.3Prehistoric | DE075 |
| Round Barrow 828m W of Cae-du | Round barrow | Llansannan | 53°09′17″N 3°36′29″W﻿ / ﻿53.1548°N 3.6081°W﻿ / 53.1548; -3.6081﻿ (Round Barrow 828m W of Cae-du), SH926632 | | Denbighshire | 1.3Prehistoric | DE172 |
| Round Cairn 648m NE of Tan-y-Foel | Round cairn | Llansannan | 53°08′45″N 3°37′02″W﻿ / ﻿53.1458°N 3.6173°W﻿ / 53.1458; -3.6173﻿ (Round Cairn 648m NE of Tan-y-Foel), SH919621 | | Denbighshire | 1.3Prehistoric | DE157 |
| Bryn Derwydd stone circle | Stone circle | Penmaenmawr | 53°15′26″N 3°54′06″W﻿ / ﻿53.2573°N 3.9018°W﻿ / 53.2573; -3.9018﻿ (Bryn Derwydd stone circle), SH732750 | | Caernarvonshire | 1.3Prehistoric | CN339 |
| Maen Crwn standing stone | Standing stone | Penmaenmawr | 53°15′24″N 3°54′13″W﻿ / ﻿53.2567°N 3.9037°W﻿ / 53.2567; -3.9037﻿ (Maen Crwn standing stone), SH731749 | | Caernarvonshire | 1.3Prehistoric | CN340 |
| Penmaenmawr Stone Circle | Stone circle | Penmaenmawr | 53°15′11″N 3°55′01″W﻿ / ﻿53.253°N 3.917°W﻿ / 53.253; -3.917﻿ (Penmaenmawr Stone Circle), SH722746 | | Caernarvonshire | 1.3Prehistoric | CN024 |
| Cefn-y-Gadfa Stone Rows and Cists | Cist burial | Pentrefoelas | 53°04′03″N 3°40′32″W﻿ / ﻿53.0675°N 3.6755°W﻿ / 53.0675; -3.6755﻿ (Cefn-y-Gadfa Stone Rows and Cists), SH878535 | | Denbighshire | 1.3Prehistoric | DE094 |
| Hafod-y-Dre Stone Rows and Cairn | Stone alignment | Pentrefoelas | 53°04′08″N 3°39′54″W﻿ / ﻿53.069°N 3.665°W﻿ / 53.069; -3.665﻿ (Hafod-y-Dre Stone Rows and Cairn), SH885537 | | Denbighshire | 1.3Prehistoric | DE095 |
| Maes Merddyn Ring Cairn | Ring cairn | Pentrefoelas | 53°04′36″N 3°42′16″W﻿ / ﻿53.0767°N 3.7044°W﻿ / 53.0767; -3.7044﻿ (Maes Merddyn Ring Cairn), SH859546 | | Denbighshire | 1.3Prehistoric | DE273 |
| Moel Rhiwlug Cist Cairn | Kerb cairn | Pentrefoelas | 53°04′57″N 3°40′11″W﻿ / ﻿53.0824°N 3.6696°W﻿ / 53.0824; -3.6696﻿ (Moel Rhiwlug Cist Cairn), SH882552 | | Denbighshire | 1.3Prehistoric | DE275 |
| Nant Heilyn Stone Setting | Stone setting | Pentrefoelas | 53°05′07″N 3°36′31″W﻿ / ﻿53.0853°N 3.6086°W﻿ / 53.0853; -3.6086﻿ (Nant Heilyn Stone Setting), SH923554 | | Denbighshire | 1.3Prehistoric | DE284 |
| Round Cairn 500m SE of Moel Seisiog | Kerb cairn | Pentrefoelas | 53°05′50″N 3°41′52″W﻿ / ﻿53.0972°N 3.6978°W﻿ / 53.0972; -3.6978﻿ (Round Cairn 500m SE of Moel Seisiog), SH864569 | | Denbighshire | 1.3Prehistoric | DE307 |
| Cefn Cyfarwydd Cairn | Round cairn | Trefriw | 53°08′52″N 3°52′01″W﻿ / ﻿53.1477°N 3.867°W﻿ / 53.1477; -3.867﻿ (Cefn Cyfarwydd Cairn), SH752628 | | Caernarvonshire | 1.3Prehistoric | CN369 |
| Hwlffordd Round Barrow | Round barrow | Ysbyty Ifan | 53°10′29″N 3°34′09″W﻿ / ﻿53.1747°N 3.5692°W﻿ / 53.1747; -3.5692﻿ (Hwlffordd Round Barrow), SH952653 | | Denbighshire | 1.3Prehistoric | DE197 |
| Castell Cawr Hillfort | Hillfort | Abergele | 53°16′38″N 3°35′54″W﻿ / ﻿53.2772°N 3.5983°W﻿ / 53.2772; -3.5983﻿ (Castell Cawr Hillfort), SH935767 | | Denbighshire | 1.5Prehistoric | DE114 |
| Early Fields & Dwellings Nr Maen y Bardd | Enclosure | Caerhun | 53°13′38″N 3°53′32″W﻿ / ﻿53.2271°N 3.8921°W﻿ / 53.2271; -3.8921﻿ (Early Fields & Dwellings Nr Maen y Bardd), SH737716 | | Caernarvonshire | 1.5Prehistoric | CN181 |
| Early Fields and Dwellings near Maen-y-Bardd | Enclosure | Caerhun | 53°13′48″N 3°53′15″W﻿ / ﻿53.2301°N 3.8876°W﻿ / 53.2301; -3.8876﻿ (Early Fields and Dwellings near Maen-y-Bardd), SH741720 | | Caernarvonshire | 1.5Prehistoric | CN157 |
| Pant y Griafolen Huts and Enclosures | Unenclosed hut circle | Caerhun | 53°10′54″N 3°55′58″W﻿ / ﻿53.1817°N 3.9329°W﻿ / 53.1817; -3.9329﻿ (Pant y Griafolen Huts and Enclosures), SH709667 | | Caernarvonshire | 1.5Prehistoric | CN145 |
| Pen y Gaer Camp | Hillfort | Caerhun | 53°12′22″N 3°52′23″W﻿ / ﻿53.206°N 3.873°W﻿ / 53.206; -3.873﻿ (Pen y Gaer Camp), SH750693 | | Caernarvonshire | 1.5Prehistoric | CN023 |
| Settlement, N of Cwm Eigiau | Enclosed hut circle | Caerhun | 53°09′26″N 3°55′49″W﻿ / ﻿53.1572°N 3.9302°W﻿ / 53.1572; -3.9302﻿ (Settlement, N of Cwm Eigiau), SH710639 | | Caernarvonshire | 1.5Prehistoric | CN236 |
| Hut Circle Settlement at Nant Bochllwyd | Hut circle settlement | Capel Curig | 53°07′13″N 4°00′23″W﻿ / ﻿53.1204°N 4.0063°W﻿ / 53.1204; -4.0063﻿ (Hut Circle Settlement at Nant Bochllwyd), SH658600 | | Caernarvonshire | 1.5Prehistoric | CN269 |
| Huts and Enclosures SE of Glan Llugwy | Field system | Capel Curig | 53°07′38″N 3°57′23″W﻿ / ﻿53.1273°N 3.9563°W﻿ / 53.1273; -3.9563﻿ (Huts and Enclosures SE of Glan Llugwy), SH692606 | | Caernarvonshire | 1.5Prehistoric | CN161 |
| Bryn Teg Enclosure | Enclosed hut circle | Cerrigydrudion | 53°01′25″N 3°33′09″W﻿ / ﻿53.0237°N 3.5526°W﻿ / 53.0237; -3.5526﻿ (Bryn Teg Enclosure), SH959485 | | Denbighshire | 1.5Prehistoric | DE229 |
| Ffridd Brynhelen Enclosures & Fields | Enclosure | Cerrigydrudion | 53°03′21″N 3°32′30″W﻿ / ﻿53.0558°N 3.5418°W﻿ / 53.0558; -3.5418﻿ (Ffridd Brynhelen Enclosures & Fields), SH967520 | | Denbighshire | 1.5Prehistoric | DE228 |
| Castell Caer Leion | Hillfort | Conwy | 53°16′57″N 3°51′42″W﻿ / ﻿53.2826°N 3.8617°W﻿ / 53.2826; -3.8617﻿ (Castell Caer Leion), SH759777 | | Caernarvonshire | 1.5Prehistoric | CN012 |
| Hut circles NW of Tyn-y-Ddol | Unenclosed hut circle | Dolwyddelan | 53°02′54″N 3°56′51″W﻿ / ﻿53.0484°N 3.9474°W﻿ / 53.0484; -3.9474﻿ (Hut circles NW of Tyn-y-Ddol), SH695519 | | Caernarvonshire | 1.5Prehistoric | CN251 |
| Caer Bach | Hillfort | Henryd | 53°14′20″N 3°52′59″W﻿ / ﻿53.2389°N 3.8831°W﻿ / 53.2389; -3.8831﻿ (Caer Bach), SH744729 | Caer Bach is a Welsh hillfort of indeterminate age, situated on the eastern slopes of Tal-y-Fan mountain, near the village of Rowen; in Conwy County, North Wales. | Caernarvonshire | 1.5Prehistoric | CN125 |
| Hut Circle Settlement at Gwern Engan | Hut circle settlement | Henryd | 53°16′13″N 3°52′05″W﻿ / ﻿53.2704°N 3.8681°W﻿ / 53.2704; -3.8681﻿ (Hut Circle Settlement at Gwern Engan), SH755764 | | Caernarvonshire | 1.5Prehistoric | CN215 |
| Hut Groups N of Cerrig y Dinas | Enclosed hut circle | Henryd | 53°15′00″N 3°52′12″W﻿ / ﻿53.2499°N 3.8699°W﻿ / 53.2499; -3.8699﻿ (Hut Groups N of Cerrig y Dinas), SH753741 | | Caernarvonshire | 1.5Prehistoric | CN127 |
| Round Hut 70m S of St Celynin's Church | Hut circle settlement | Henryd | 53°14′43″N 3°52′23″W﻿ / ﻿53.2452°N 3.8731°W﻿ / 53.2452; -3.8731﻿ (Round Hut 70m S of St Celynin's Church), SH751736 | | Caernarvonshire | 1.5Prehistoric | CN128 |
| Caer Oleu Camp | Hillfort | Llanddoged and Maenan | 53°10′55″N 3°48′27″W﻿ / ﻿53.1819°N 3.8076°W﻿ / 53.1819; -3.8076﻿ (Caer Oleu Camp), SH793665 | | Caernarvonshire | 1.5Prehistoric | CN041 |
| Pen-y-Corddyn Camp | Hillfort | Llanddulas and Rhyd-y-Foel | 53°16′24″N 3°37′43″W﻿ / ﻿53.2734°N 3.6285°W﻿ / 53.2734; -3.6285﻿ (Pen-y-Corddyn Camp), SH915764 | | Denbighshire | 1.5Prehistoric | DE008 |
| Coed Gaer Hut Circle | Unenclosed hut circle | Llandudno | 53°18′42″N 3°48′09″W﻿ / ﻿53.3116°N 3.8024°W﻿ / 53.3116; -3.8024﻿ (Coed Gaer Hut Circle), SH800809 | | Caernarvonshire | 1.5Prehistoric | CN257 |
| Hut Circle, Bryniau Poethion, Great Orme | Unenclosed hut circle | Llandudno | 53°19′58″N 3°50′59″W﻿ / ﻿53.3328°N 3.8496°W﻿ / 53.3328; -3.8496﻿ (Hut Circle, Bryniau Poethion, Great Orme), SH769833 | | Caernarvonshire | 1.5Prehistoric | CN234 |
| Hut Circle, Hafnant, Great Orme | Unenclosed hut circle | Llandudno | 53°20′21″N 3°51′28″W﻿ / ﻿53.3393°N 3.8579°W﻿ / 53.3393; -3.8579﻿ (Hut Circle, Hafnant, Great Orme), SH763840 | | Caernarvonshire | 1.5Prehistoric | CN235 |
| Pen y Dinas Camp | Hillfort | Llandudno | 53°19′47″N 3°50′05″W﻿ / ﻿53.3296°N 3.8348°W﻿ / 53.3296; -3.8348﻿ (Pen y Dinas Camp), SH779829 | | Caernarvonshire | 1.5Prehistoric | CN039 |
| Dinas Camp | Hillfort | Llanfairfechan | 53°14′44″N 3°56′57″W﻿ / ﻿53.2456°N 3.9493°W﻿ / 53.2456; -3.9493﻿ (Dinas Camp), SH700738 | | Caernarvonshire | 1.5Prehistoric | CN049 |
| Garreg Fawr Hut Groups, Ancient Fields and Cairns | Enclosed hut circle | Llanfairfechan | 53°14′30″N 3°58′17″W﻿ / ﻿53.2417°N 3.9714°W﻿ / 53.2417; -3.9714﻿ (Garreg Fawr Hut Groups, Ancient Fields and Cairns), SH685734 | | Caernarvonshire | 1.5Prehistoric | CN185 |
| Gwern y Plas Ancient Village | Unenclosed hut circle | Llanfairfechan | 53°15′15″N 3°58′11″W﻿ / ﻿53.2541°N 3.9698°W﻿ / 53.2541; -3.9698﻿ (Gwern y Plas Ancient Village), SH686748 | | Caernarvonshire | 1.5Prehistoric | CN072 |
| Hut Circles near Wern Newydd | Unenclosed hut circle | Llanfairfechan | 53°14′51″N 3°59′24″W﻿ / ﻿53.2474°N 3.9899°W﻿ / 53.2474; -3.9899﻿ (Hut Circles near Wern Newydd), SH673741 | | Caernarvonshire | 1.5Prehistoric | CN250 |
| Hut Circles West of Foel Llwyd | Unenclosed hut circle | Llanfairfechan | 53°13′59″N 3°55′44″W﻿ / ﻿53.233°N 3.9289°W﻿ / 53.233; -3.9289﻿ (Hut Circles West of Foel Llwyd), SH713724 | | Caernarvonshire | 1.5Prehistoric | CN306 |
| Pont y Teiryd Hut Group and Ancient Fields | Enclosed hut circle | Llanfairfechan | 53°14′34″N 3°57′24″W﻿ / ﻿53.2429°N 3.9566°W﻿ / 53.2429; -3.9566﻿ (Pont y Teiryd Hut Group and Ancient Fields), SH695735 | | Caernarvonshire | 1.5Prehistoric | CN184 |
| Cae Ddunod Camp | Hillfort | Llanfihangel Glyn Myfyr | 53°03′20″N 3°30′51″W﻿ / ﻿53.0556°N 3.5143°W﻿ / 53.0556; -3.5143﻿ (Cae Ddunod Camp), SH986520 | | Denbighshire | 1.5Prehistoric | DE076 |
| Cefn Banog Ancient Village | Hut circle settlement | Llanfihangel Glyn Myfyr | 53°02′51″N 3°27′56″W﻿ / ﻿53.0474°N 3.4656°W﻿ / 53.0474; -3.4656﻿ (Cefn Banog Ancient Village), SJ018510 | | Denbighshire | 1.5Prehistoric | DE029 |
| Pen-y-Gaer Camp (Caer Caradog) | Hillfort | Llanfihangel Glyn Myfyr | 53°01′07″N 3°32′22″W﻿ / ﻿53.0186°N 3.5395°W﻿ / 53.0186; -3.5395﻿ (Pen-y-Gaer Camp (Caer Caradog)), SH968479 | | Denbighshire | 1.5Prehistoric | DE011 |
| Tyddyn Tudur Enclosure | Enclosure - Domestic | Llanfihangel Glyn Myfyr | 53°02′02″N 3°31′44″W﻿ / ﻿53.0338°N 3.529°W﻿ / 53.0338; -3.529﻿ (Tyddyn Tudur Enclosure), SH975495 | | Denbighshire | 1.5Prehistoric | DE253 |
| Pant-y-Rhedyn Earthwork | Enclosure | Llangernyw | 53°10′53″N 3°44′02″W﻿ / ﻿53.1814°N 3.7339°W﻿ / 53.1814; -3.7339﻿ (Pant-y-Rhedyn Earthwork), SH842663 | | Denbighshire | 1.5Prehistoric | DE078 |
| Mynydd y Gaer Camp | Hillfort | Llannefydd | 53°14′00″N 3°32′25″W﻿ / ﻿53.2332°N 3.5404°W﻿ / 53.2332; -3.5404﻿ (Mynydd y Gaer Camp), SH972717 | | Denbighshire | 1.5Prehistoric | DE082 |
| Gwern Engan Concentric Enclosed Hut Circle | Hut circle settlement | Penmaenmawr | 53°16′24″N 3°52′16″W﻿ / ﻿53.2734°N 3.8711°W﻿ / 53.2734; -3.8711﻿ (Gwern Engan Concentric Enclosed Hut Circle), SH753767 | | Caernarvonshire | 1.5Prehistoric | CN299 |
| Hut Circles at Clip yr Orsedd | Hut circle settlement | Penmaenmawr | 53°15′23″N 3°56′04″W﻿ / ﻿53.2563°N 3.9345°W﻿ / 53.2563; -3.9345﻿ (Hut Circles at Clip yr Orsedd), SH710750 | | Caernarvonshire | 1.5Prehistoric | CN283 |
| Maes-Gwyn Castle Mound | Mound | Pentrefoelas | 53°03′24″N 3°41′50″W﻿ / ﻿53.0568°N 3.6973°W﻿ / 53.0568; -3.6973﻿ (Maes-Gwyn Castle Mound), SH863524 | | Denbighshire | 1.5Prehistoric | DE128 |
| Bryn Euryn Camp | Hillfort | Rhos-on-Sea | 53°18′08″N 3°45′16″W﻿ / ﻿53.3021°N 3.7544°W﻿ / 53.3021; -3.7544﻿ (Bryn Euryn Camp), SH831797 | | Denbighshire | 1.5Prehistoric | DE071 |
| Hut Settlement West of Allt Goch | Unenclosed hut circle | Trefriw | 53°08′27″N 3°52′49″W﻿ / ﻿53.1407°N 3.8803°W﻿ / 53.1407; -3.8803﻿ (Hut Settlement West of Allt Goch), SH743620 | | Caernarvonshire | 1.5Prehistoric | CN291 |
| Hut group SSW of Cefngarw, Ysbyty | Hut circle settlement | Ysbyty Ifan | 52°57′27″N 3°48′12″W﻿ / ﻿52.9574°N 3.8033°W﻿ / 52.9574; -3.8033﻿ (Hut group SSW of Cefngarw, Ysbyty), SH789415 | | Caernarvonshire | 1.5Prehistoric | CN242 |
| Kanovium Roman Site | Fort | Caerhun | 53°13′01″N 3°49′59″W﻿ / ﻿53.217°N 3.833°W﻿ / 53.217; -3.833﻿ (Kanovium Roman Site), SH777704 | | Caernarvonshire | 2Roman | CN001 |
| Caer Llugwy (Bryn-y-Gefeiliau Roman Fort) | Fort | Capel Curig | 53°05′50″N 3°52′27″W﻿ / ﻿53.0972°N 3.8743°W﻿ / 53.0972; -3.8743﻿ (Caer Llugwy (Bryn-y-Gefeiliau Roman Fort)), SH746572 | Roman Fort of nearly 4 acres (1.6 ha) alongside the River Llugwy. A 1923 excavation named it after the river. More recent reports have used the name of the nearby farm. It is not known what the Roman's called it. | Caernarvonshire | 2Roman | CN010 |
| Roman Road N of Llannerch Fedw | Road | Llanfairfechan | 53°13′46″N 3°56′19″W﻿ / ﻿53.2294°N 3.9386°W﻿ / 53.2294; -3.9386﻿ (Roman Road N of Llannerch Fedw), SH706720 | | Caernarvonshire | 2Roman | CN402 |
| St George's Well, Abergele | Holy Well | Abergele | 53°16′05″N 3°32′10″W﻿ / ﻿53.2681°N 3.5362°W﻿ / 53.2681; -3.5362﻿ (St George's Well, Abergele), SH976756 | | Denbighshire | 3Early Medieval | DE186 |
| Six Inscribed Stones in St Tudclud's Church, Penmachno | Inscribed stone | Bro Machno | 53°02′20″N 3°48′22″W﻿ / ﻿53.0388°N 3.8061°W﻿ / 53.0388; -3.8061﻿ (Six Inscribed Stones in St Tudclud's Church, Penmachno), SH789506 | | Caernarvonshire | 3Early Medieval | CN182 |
| Group of Four Inscribed Stones in Gwytherin Churchyard | Inscribed stone | Llangernyw | 53°08′19″N 3°40′50″W﻿ / ﻿53.1385°N 3.6806°W﻿ / 53.1385; -3.6806﻿ (Group of Four Inscribed Stones in Gwytherin Churchyard), SH876614 | | Denbighshire | 3Early Medieval | DE150 |
| Two Cross-Incised Stones in St Digain's Churchyard, Llangernyw | Cross-marked stone | Llangernyw | 53°11′32″N 3°41′07″W﻿ / ﻿53.1921°N 3.6852°W﻿ / 53.1921; -3.6852﻿ (Two Cross-Incised Stones in St Digain's Churchyard, Llangernyw), SH875674 | | Denbighshire | 3Early Medieval | DE161 |
| Brohomalgi Stone (Now In Veolas Hall) | Inscribed stone | Pentrefoelas | 53°02′55″N 3°43′00″W﻿ / ﻿53.0485°N 3.7166°W﻿ / 53.0485; -3.7166﻿ (Brohomalgi Stone (Now In Veolas Hall)), SH850515 | | Denbighshire | 3Early Medieval | DE096 |
| Dol Tre Beddau: Site of Discovery of Brohomaglus Stone | Inscribed stone | Pentrefoelas | 53°02′47″N 3°42′13″W﻿ / ﻿53.0465°N 3.7037°W﻿ / 53.0465; -3.7037﻿ (Dol Tre Beddau: Site of Discovery of Brohomaglus Stone), SH858512 | | Denbighshire | 3Early Medieval | DE239 |
| The Mount, Abergele | Mound | Abergele | 53°17′07″N 3°34′48″W﻿ / ﻿53.2852°N 3.58°W﻿ / 53.2852; -3.58﻿ (The Mount, Abergele), SH947776 | | Denbighshire | 4Medieval | DE031 |
| Pont y Pair | Bridge | Betws-y-Coed | 53°05′38″N 3°48′22″W﻿ / ﻿53.0939°N 3.806°W﻿ / 53.0939; -3.806﻿ (Pont y Pair), SH791567 | | Caernarvonshire | 4Medieval | CN032 |
| Maen Sertan Boundary Stones | Boundary stone | Bro Garmon | 53°05′00″N 3°43′54″W﻿ / ﻿53.0832°N 3.7318°W﻿ / 53.0832; -3.7318﻿ (Maen Sertan Boundary Stones), SH841554 | | Denbighshire | 4Medieval | DE093 |
| Bryn Castell | Motte | Caerhun | 53°13′49″N 3°49′16″W﻿ / ﻿53.2303°N 3.8211°W﻿ / 53.2303; -3.8211﻿ (Bryn Castell), SH785719 | | Caernarvonshire | 4Medieval | CN092 |
| Clogwyn yr Eryr Deserted Rural Settlement | Rectangular hut | Caerhun | 53°10′52″N 3°54′40″W﻿ / ﻿53.1811°N 3.9112°W﻿ / 53.1811; -3.9112﻿ (Clogwyn yr Eryr Deserted Rural Settlement), SH723665 | | Caernarvonshire | 4Medieval | CN319 |
| Hafod y Garreg Deserted Rural Settlement | Rectangular hut | Caerhun | 53°11′15″N 3°53′41″W﻿ / ﻿53.1876°N 3.8948°W﻿ / 53.1876; -3.8948﻿ (Hafod y Garreg Deserted Rural Settlement), SH734672 | | Caernarvonshire | 4Medieval | CN320 |
| Ty'n y Ddol Medieval Long Hut | Platform house | Capel Curig | 53°02′39″N 3°56′21″W﻿ / ﻿53.0441°N 3.9393°W﻿ / 53.0441; -3.9393﻿ (Ty'n y Ddol Medieval Long Hut), SH700514 | | Caernarvonshire | 4Medieval | CN304 |
| Conwy Castle | Castle | Conwy | 53°16′48″N 3°49′32″W﻿ / ﻿53.2801°N 3.8256°W﻿ / 53.2801; -3.8256﻿ (Conwy Castle), SH783774 | | Caernarvonshire | 4Medieval | CN004 |
| Conwy Town Walls | Town Wall | Conwy | 53°16′54″N 3°49′52″W﻿ / ﻿53.2817°N 3.8312°W﻿ / 53.2817; -3.8312﻿ (Conwy Town Wall), SH780776 | | Caernarvonshire | 4Medieval | CN014 |
| Deganwy Castle | Castle | Conwy | 53°17′52″N 3°49′43″W﻿ / ﻿53.2978°N 3.8285°W﻿ / 53.2978; -3.8285﻿ (Deganwy Castle), SH782794 | | Caernarvonshire | 4Medieval | CN016 |
| Site of Medieval King's Hall and Wardrobe, Rosehill Street | Building (Unclassified) | Conwy | 53°16′48″N 3°49′42″W﻿ / ﻿53.2801°N 3.8282°W﻿ / 53.2801; -3.8282﻿ (Site of Medieval King's Hall and Wardrobe, Rosehill Street), SH782774 | | Caernarvonshire | 4Medieval | CN147 |
| Dolwyddelan Castle | Castle | Dolwyddelan | 53°03′11″N 3°54′30″W﻿ / ﻿53.0531°N 3.9084°W﻿ / 53.0531; -3.9084﻿ (Dolwyddelan Castle), SH721523 | | Caernarvonshire | 4Medieval | CN040 |
| Tomen y Castell | Motte | Dolwyddelan | 53°03′05″N 3°54′14″W﻿ / ﻿53.0515°N 3.9039°W﻿ / 53.0515; -3.9039﻿ (Tomen y Castell), SH724521 | | Caernarvonshire | 4Medieval | CN196 |
| Site of Aberconwy Abbey, Maenan | Abbey | Llanddoged and Maenan | 53°10′28″N 3°48′44″W﻿ / ﻿53.1744°N 3.8123°W﻿ / 53.1744; -3.8123﻿ (Site of Aberconwy Abbey, Maenan), SH789656 | | Caernarvonshire | 4Medieval | CN082 |
| Gogarth Grange | Bishop's Palace | Llandudno | 53°19′43″N 3°51′45″W﻿ / ﻿53.3285°N 3.8624°W﻿ / 53.3285; -3.8624﻿ (Gogarth Grange), SH760829 | | Caernarvonshire | 4Medieval | CN093 |
| Cae'r Haidd Deserted Rural Settlement | Platform house | Llanfairfechan | 53°14′20″N 3°58′42″W﻿ / ﻿53.239°N 3.9783°W﻿ / 53.239; -3.9783﻿ (Cae'r Haidd Deserted Rural Settlement), SH680732 | | Caernarvonshire | 4Medieval | CN330 |
| Hendre-Isaf Castle Mound | Motte | Llangernyw | 53°12′16″N 3°41′13″W﻿ / ﻿53.2045°N 3.687°W﻿ / 53.2045; -3.687﻿ (Hendre-Isaf Castle Mound), SH874688 | | Denbighshire | 4Medieval | DE077 |
| St. Gwenfrewi's Chapel, Gwytherin | Chapel | Llangernyw | 53°08′17″N 3°40′50″W﻿ / ﻿53.138°N 3.6806°W﻿ / 53.138; -3.6806﻿ (St. Gwenfrewi's Chapel, Gwytherin), SH877614 | | Denbighshire | 4Medieval | DE240 |
| Maesmor Hall Castle Mound | Motte | Llangwm | 52°59′22″N 3°28′19″W﻿ / ﻿52.9895°N 3.4719°W﻿ / 52.9895; -3.4719﻿ (Maesmor Hall Castle Mound), SJ012445 | | Denbighshire | 4Medieval | DE149 |
| Nant y Foel Long Hut | Deserted Rural Settlement | Pentrefoelas | 53°05′02″N 3°40′49″W﻿ / ﻿53.0839°N 3.6804°W﻿ / 53.0839; -3.6804﻿ (Nant y Foel Long Hut), SH875553 | | Denbighshire | 4Post Medieval/Modern | DE298 |
| Y Foelas Castle Mound | Motte & Bailey | Pentrefoelas | 53°03′19″N 3°41′14″W﻿ / ﻿53.0554°N 3.6872°W﻿ / 53.0554; -3.6872﻿ (Y Foelas Castle Mound), SH870522 | | Denbighshire | 4Medieval | DE097 |
| Llys Euryn Medieval House, Llandrillo-yn-Rhos | House (domestic) | Rhos-on-Sea | 53°18′22″N 3°45′10″W﻿ / ﻿53.3061°N 3.7529°W﻿ / 53.3061; -3.7529﻿ (Llys Euryn Medieval House, Llandrillo-yn-Rhos), SH832802 | | Denbighshire | 4Medieval | DE146 |
| Tyddyn Wilym Deserted Rural Settlement | Deserted Rural Settlement | Trefriw | 53°10′20″N 3°50′28″W﻿ / ﻿53.1722°N 3.8412°W﻿ / 53.1722; -3.8412﻿ (Tyddyn Wilym Deserted Rural Settlement), SH770654 | | Caernarvonshire | 4Medieval | CN328 |
| Ffridd-y-Fedw Platform House | Platform house | Ysbyty Ifan | 52°59′24″N 3°45′03″W﻿ / ﻿52.9899°N 3.7508°W﻿ / 52.9899; -3.7508﻿ (Ffridd-y-Fedw Platform House), SH825450 | | Caernarvonshire | 4Medieval | CN305 |
| Afon Llugwy Lead Mill | Mill | Betws-y-Coed | 53°06′06″N 3°50′08″W﻿ / ﻿53.1017°N 3.8356°W﻿ / 53.1017; -3.8356﻿ (Afon Llugwy Lead Mill), SH772576 | | Caernarvonshire | 5Post-Medieval/Modern | CN331 |
| Coed Mawr Pool Lead Mine | Lead mine | Betws-y-Coed | 53°06′33″N 3°49′21″W﻿ / ﻿53.1091°N 3.8224°W﻿ / 53.1091; -3.8224﻿ (Coed Mawr Pool Lead Mine), SH781584 | | Caernarvonshire | 5Post-Medieval/Modern | CN332 |
| Hafodlas Slate Quarry Mills and Associated Features | Incline Drumhouse | Betws-y-Coed | 53°05′20″N 3°49′26″W﻿ / ﻿53.0889°N 3.8239°W﻿ / 53.0889; -3.8239﻿ (Hafodlas Slate Quarry Mills and Associated Features), SH779561 | | Caernarvonshire | 5Post-Medieval/Modern | CN295 |
| Pont Rhyd-Llanfair | Bridge | Bro Garmon | 53°03′23″N 3°45′01″W﻿ / ﻿53.0563°N 3.7503°W﻿ / 53.0563; -3.7503﻿ (Pont Rhyd-Llanfair), SH827524 | | Caernarvonshire | 5Post-Medieval/Modern | CN033 |
| Barn N of Pen-y-Bryn | Barn | Bro Machno | 53°02′11″N 3°48′38″W﻿ / ﻿53.0363°N 3.8105°W﻿ / 53.0363; -3.8105﻿ (Barn N of Pen-y-Bryn), SH786503 | | Caernarvonshire | 5Post-Medieval/Modern | CN139 |
| Cwm Penmachno Slate Quarry | Incline | Bro Machno | 53°00′17″N 3°51′45″W﻿ / ﻿53.0048°N 3.8625°W﻿ / 53.0048; -3.8625﻿ (Cwm Penmachno Slate Quarry), SH751468 | | Caernarvonshire | 5Post-Medieval/Modern | CN333 |
| Fedw-Deg Old House | House (domestic) | Bro Machno | 53°03′47″N 3°48′31″W﻿ / ﻿53.063°N 3.8085°W﻿ / 53.063; -3.8085﻿ (Fedw-Deg Old House), SH789532 | | Caernarvonshire | 5Post-Medieval/Modern | CN099 |
| Roman Bridge Penmachno | Bridge | Bro Machno | 53°03′37″N 3°46′55″W﻿ / ﻿53.0602°N 3.782°W﻿ / 53.0602; -3.782﻿ (Roman Bridge Penmachno), SH806529 | Although known as 'Roman Bridge', its age is uncertain but likely to be from the 16th or 17th century. Now in a ruined state. | Caernarvonshire | 5Post-Medieval/Modern | CN189 |
| Bryniau Tower | Tower | Conwy | 53°18′21″N 3°49′26″W﻿ / ﻿53.3057°N 3.824°W﻿ / 53.3057; -3.824﻿ (Bryniau Tower), SH785803 | | Caernarvonshire | 5Post-Medieval/Modern | CN201 |
| Plas Mawr | House (domestic) | Conwy | 53°16′52″N 3°49′48″W﻿ / ﻿53.2812°N 3.83°W﻿ / 53.2812; -3.83﻿ (Plas Mawr), SH780775 | | Caernarvonshire | 5Post-Medieval/Modern | CN083 |
| Chapel at Penrhyn Old Hall | Chapel | Llandudno | 53°19′05″N 3°46′43″W﻿ / ﻿53.3181°N 3.7785°W﻿ / 53.3181; -3.7785﻿ (Chapel at Penrhyn Old Hall), SH816816 | | Caernarvonshire | 5Post-Medieval/Modern | CN074 |
| The Holyhead Road: Ty Nant section | Road | Llangwm | 52°59′12″N 3°30′02″W﻿ / ﻿52.9868°N 3.5005°W﻿ / 52.9868; -3.5005﻿ (The Holyhead Road: Ty Nant section), SH993443 | | Denbighshire | 5Post-Medieval/Modern | DE287 |
| Llanrwst Bridge | Bridge | Llanrwst | 53°08′13″N 3°47′51″W﻿ / ﻿53.137°N 3.7975°W﻿ / 53.137; -3.7975﻿ (Llanrwst Bridge), SH798614 | Known as Pont Fawr, the elegant three-arched bridge is dated 1636, and reputedly designed by Inigo Jones. | Denbighshire | 5Post-Medieval/Modern | DE025 |
| Pont Newydd (Northern) | Bridge | Pentrefoelas | 53°02′48″N 3°41′59″W﻿ / ﻿53.0468°N 3.6997°W﻿ / 53.0468; -3.6997﻿ (Pont Newydd (Northern)), SH861512 | | Denbighshire | 5Post-Medieval/Modern | DE098 |
| Ffridd Uchaf Deserted Rural Settlement | Deserted Rural Settlement | Trefriw | 53°10′03″N 3°50′33″W﻿ / ﻿53.1674°N 3.8426°W﻿ / 53.1674; -3.8426﻿ (Ffridd Uchaf Deserted Rural Settlement), SH769649 | | Caernarvonshire | 5Post-Medieval/Modern | CN329 |
| Gwydir Uchaf Chapel | Chapel | Trefriw | 53°07′55″N 3°48′10″W﻿ / ﻿53.1319°N 3.8028°W﻿ / 53.1319; -3.8028﻿ (Gwydir Uchaf Chapel), SH794609 | | Caernarvonshire | 5Post-Medieval/Modern | CN113 |
| Hafna Lead Mine Mill | Lead mine | Trefriw | 53°07′27″N 3°49′25″W﻿ / ﻿53.1242°N 3.8236°W﻿ / 53.1242; -3.8236﻿ (Hafna Lead Mine Mill), SH780601 | | Caernarvonshire | 5Post-Medieval/Modern | CN326 |
| Klondyke Lead Mill | Lead mine | Trefriw | 53°08′33″N 3°50′52″W﻿ / ﻿53.1424°N 3.8478°W﻿ / 53.1424; -3.8478﻿ (Klondyke Lead Mill), SH764621 | | Caernarvonshire | 5Post-Medieval/Modern | CN159 |
| Vale of Conwy Lead Mine | Lead mine | Trefriw | 53°07′19″N 3°49′28″W﻿ / ﻿53.1219°N 3.8245°W﻿ / 53.1219; -3.8245﻿ (Vale of Conwy Lead Mine), SH780598 | | Caernarvonshire | 5Post-Medieval/Modern | CN327 |
| Pont Newydd (Southern) | Bridge | Ysbyty Ifan | 53°02′47″N 3°41′58″W﻿ / ﻿53.0464°N 3.6995°W﻿ / 53.0464; -3.6995﻿ (Pont Newydd (Southern)), SH861512 | | Denbighshire | 5Post-Medieval/Modern | DE099 |
| Former Royal Artillery Coast Artillery School | Training Camp | Llandudno | 53°19′58″N 3°52′33″W﻿ / ﻿53.3327°N 3.8758°W﻿ / 53.3327; -3.8758﻿ (Former Royal Artillery Coast Artillery School), SH751833 | | Caernarvonshire | 5.8Post-Medieval/Modern | CN409 |
| Nant Ffrancon Anti-invasion Defences | Anti-invasion defence site | Capel Curig, (also Llandygai), (see also Gwynedd) | 53°07′31″N 4°01′20″W﻿ / ﻿53.1252°N 4.0222°W﻿ / 53.1252; -4.0222﻿ (Nant Ffrancon Anti-invasion Defences), SH647605 | | Caernarvonshire | 5.9Post-Medieval/Modern | CN399 |
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