List of Scheduled Roman to modern Monuments in Gwynedd
Scheduled Roman to modern Monuments in Gwynedd

List of Scheduled Roman to modern Monuments in Gwynedd

Section Title: Scheduled Roman to modern Monuments in Gwynedd
Table Section Text: None

Image	Name	Site type	Community	Location	Details	Historic County	Period	SAM No & Refs

Enclosure & Settlement 400m East of Cyfannedd Fawr	Hut circle settlement	Arthog	52°41′25″N 4°01′20″W / 52.6904°N 4.0223°W, SH634122	Merionethshire	Roman	ME086

Round Hut and Cairns on NW Slope of Braich Ddu	Ring cairn	Arthog	52°41′23″N 4°01′15″W / 52.6896°N 4.0208°W, SH635121	Merionethshire	Roman	ME100

View of Bangor and Penrhyn from the Roman Camp	Pier Camp	Earthwork	Bangor	53°14′02″N 4°07′39″W / 53.2339°N 4.1276°W, SH581729	Strongly defensible earthworth hillfort. A 4th century Roman coin found on the site.	Caernarvonshire	Unknown	CN073

Dinas Emrys	Dinas Emrys Camp	Hillfort	Beddgelert	53°01′20″N 4°04′44″W / 53.0222°N 4.0788°W, SH606492	Hilltop fort which tradition links with Vortigern and Merlin. Iron Age, Roman and Dark Age evidence has all been found.	Caernarvonshire	Roman	CN018

Brithdir Roman Fort	Roman fort	Brithdir and Llanfachreth	52°45′13″N 3°49′15″W / 52.7535°N 3.8209°W, SH772188	Roman fortlet which may also have had its own settlement. Now on the edge of the village if Brithdir.	Merionethshire	Roman	ME080

Looking NW across the site of the Segontium Roman Fort	Segontium Roman Fort Property in the care of Cadw	Roman fort	Caernarfon	53°08′14″N 4°15′58″W / 53.1372°N 4.2662°W, SH485624	Regiment garrisoned here from 77AD to 394AD, a uniquely long occupation within Wales. It was the administrative centre for NW Wales throughout this period.	Caernarvonshire	Roman	CN006

Lower Roman Fort	Roman fort	Caernarfon	53°08′12″N 4°16′13″W / 53.1367°N 4.2702°W, SH482623	Caernarvonshire	Roman	CN094

Bryn-Glas Roman Signal Station	Signal station	Caernarfon	53°08′50″N 4°14′24″W / 53.1473°N 4.2401°W, SH502634	Caernarvonshire	Roman	CN188

Llanfor Roman Fort and Camps	Roman fort	Llandderfel	52°54′45″N 3°34′55″W / 52.9124°N 3.582°W, SH937361	(revealed by Aerial Photography)	Merionethshire	Roman	ME092

Caer Gai Roman Site	Roman fort	Llanuwchllyn	52°52′08″N 3°40′07″W / 52.8688°N 3.6686°W, SH877314	Merionethshire	Roman	ME018

Dinas y Prif Camp	Enclosure	Llanwnda	53°05′42″N 4°17′46″W / 53.0949°N 4.2961°W, SH463577	Caernarvonshire	Roman	CN030

Castell Tomen y Mur	Castell Tomen y Mur	Amphitheatre	Maentwrog	52°55′48″N 3°55′30″W / 52.9299°N 3.925°W, SH705386	Merionethshire	Roman	ME002

Tomen y Mur	Roman fort	Maentwrog	52°55′39″N 3°55′17″W / 52.9276°N 3.9214°W, SH709384	Merionethshire	Roman	ME078

Cefn-Caer Roman Site	Roman fort	Pennal	52°35′00″N 3°54′45″W / 52.5832°N 3.9125°W, SH705000	Merionethshire	Roman	ME009

Roman Bath-House, Tremadoc	Bath-house	Porthmadog	52°56′21″N 4°08′54″W / 52.9392°N 4.1482°W, SH557401	Caernarvonshire	Roman	CN174

Roman Kilns 225m SE of Pen-y-Stryd	Kiln	Trawsfynydd	52°52′11″N 3°53′30″W / 52.8697°N 3.8918°W, SH727319	Merionethshire	Roman	ME071

Dol-ddinas Roman Earthworks	Practice camp	Trawsfynydd	52°55′27″N 3°53′01″W / 52.9241°N 3.8836°W, SH734379	Merionethshire	Roman	ME077

Roman Practice Camp 440m WSW of Braich-ddu	Practice camp	Trawsfynydd	52°55′39″N 3°54′39″W / 52.9274°N 3.9109°W, SH716383	Merionethshire	Roman	ME260

Roman Practice Camps 190m W of Llyn Hiraethlyn	Practice camp	Trawsfynydd	52°54′51″N 3°52′24″W / 52.9141°N 3.8733°W, SH741368	Merionethshire	Roman	ME261

Roman Road Extending SE 650m from Llyn Hiraethlyn toward Glasgoed	Roman Road	Trawsfynydd	52°54′49″N 3°52′06″W / 52.9135°N 3.8683°W, SH743368	Merionethshire	Roman	ME262

The Senacus Stone (formerly in Tudweiliog, Dwyfer)	Inscribed stone	Aberdaron	52°48′14″N 4°42′41″W / 52.8039°N 4.7113°W, SH173263	Caernarvonshire	Early Medieval	CN089

The Veracius Stone (formerly in Tudweiliog, Dwyfer)	Inscribed stone	Aberdaron	52°48′14″N 4°42′41″W / 52.8039°N 4.7113°W, SH173263	Caernarvonshire	Early Medieval	CN090

Cross-Inscribed Stone in the Chapel, Bardsey Island	Cross-marked stone	Aberdaron	52°45′51″N 4°47′12″W / 52.7641°N 4.7868°W, SH120221	Caernarvonshire	Early Medieval	CN141

Inscribed Stone in the Chapel, Bardsey Island	Inscribed stone	Aberdaron	52°45′51″N 4°47′12″W / 52.7641°N 4.7868°W, SH120221	Caernarvonshire	Early Medieval	CN142

Sundial in Clynnog Fawr Churchyard	Sundial	Clynnog	53°01′15″N 4°21′56″W / 53.0208°N 4.3656°W, SH414496	Caernarvonshire	Early Medieval	CN062

Cross Inscribed Stone Near Capel Uchaf	Cross-marked stone	Clynnog	53°01′23″N 4°20′30″W / 53.023°N 4.3417°W, SH430498	Caernarvonshire	Early Medieval	CN213

Gesail Gyfarch Inscribed Stone	Inscribed stone	Dolbenmaen	52°57′10″N 4°10′29″W / 52.9528°N 4.1746°W, SH540417	Caernarvonshire	Early Medieval	CN019

Llystyn Gwyn Inscribed Stone	Inscribed stone	Dolbenmaen	52°59′08″N 4°15′45″W / 52.9855°N 4.2626°W, SH482455	Caernarvonshire	Early Medieval	CN021

Early Christian Inscribed Stone in the Churchyard, Llanaelhaearn	Inscribed stone	Llanaelhaearn	52°58′35″N 4°24′15″W / 52.9764°N 4.4041°W, SH386448	Caernarvonshire	Early Medieval	CN084

Part of Inscribed Stone Built into Wall of Churchyard	Inscribed stone	Llanaelhaearn	52°58′35″N 4°24′15″W / 52.9763°N 4.4041°W, SH386448	Caernarvonshire	Early Medieval	CN085

Inscribed Stone in St Cian's Churchyard, Llangian	Inscribed stone	Llanegan	52°49′51″N 4°31′53″W / 52.8309°N 4.5314°W, SH295289	Caernarvonshire	Early Medieval	CN087

Cross-Incised Stone in Llangybi Churchyard	Cross-marked stone	Llanystumdwy	52°56′41″N 4°20′25″W / 52.9447°N 4.3402°W, SH428411	Caernarvonshire	Early Medieval	CN100

Cross Slab Built into Farm Building Ty'n-y-Cae	Cross-marked stone	Nefyn	52°56′25″N 4°30′46″W / 52.9404°N 4.5127°W, SH312410	Caernarvonshire	Early Medieval	CN180

Tymawr Cross-Incised Stone	Cross-marked stone	Pistyll	52°56′50″N 4°30′08″W / 52.9473°N 4.5023°W, SH319418	Caernarvonshire	Early Medieval	CN101

Aber Castle Mound (Pen-y-Mwd)	Motte	Aber	53°14′02″N 4°00′50″W / 53.2338°N 4.014°W, SH656726	Caernarvonshire	Medieval	CN007

Medieval Homestead 400m SE of Maes y Gaer	Rectangular hut settlement	Aber	53°13′51″N 3°59′56″W / 53.2307°N 3.9988°W, SH666722	Caernarvonshire	Medieval	CN137

Enclosure & Associated Structures at Pen-y-Bryn	Enclosure	Aber	53°14′06″N 4°00′43″W / 53.235°N 4.012°W, SH658727	Caernarvonshire	Medieval	CN218

Bardsey Island - St Mary's Abbey	St Mary's Abbey, Bardsey Island	Abbey	Aberdaron	52°45′51″N 4°47′16″W / 52.7643°N 4.7877°W, SH120221	Caernarvonshire	Medieval	CN068

Site of St Merin's Church	Church	Aberdaron	52°50′59″N 4°42′51″W / 52.8498°N 4.7143°W, SH173314	Caernarvonshire	Medieval	CN171

Long Houses, Enclosures & Field Systems, Bardsey Island	Rectangular hut	Aberdaron	52°46′03″N 4°47′27″W / 52.7674°N 4.7908°W, SH118225	Caernarvonshire	Medieval	CN186

Capel Anelog	Chapel	Aberdaron	52°48′47″N 4°44′16″W / 52.813°N 4.7377°W, SH155274	Caernarvonshire	Medieval	CN220

Long House South of Talarfor	Longhouse	Aberdaron	52°49′27″N 4°37′30″W / 52.8241°N 4.6251°W, SH232284	Caernarvonshire	Medieval	CN318

St Mary's Church	Church	Aberdaron	52°47′36″N 4°45′40″W / 52.7934°N 4.7612°W, SH139253	Caernarvonshire	Medieval	CN381

Llys Bradwen Medieval Site	Enclosure	Arthog	52°42′20″N 3°59′57″W / 52.7055°N 3.9993°W, SH650138	Merionethshire	Medieval	ME022

Cyfannedd-Fach Homestead	Platform house	Arthog	52°41′44″N 4°01′33″W / 52.6955°N 4.0257°W, SH631127	Merionethshire	Medieval	ME101

Tomen y Bala Castle Mound	Motte	Bala	52°54′41″N 3°35′44″W / 52.9115°N 3.5955°W, SH928360	Merionethshire	Medieval	ME016

Ty'n Twr	Building (Unclassified)	Bethesda	53°10′24″N 4°03′26″W / 53.1734°N 4.0571°W, SH626660	Caernarvonshire	Medieval	CN219

Hafod-y-Wern Long Hut	Rectangular hut	Betws Garmon	53°05′32″N 4°12′06″W / 53.0922°N 4.2016°W, SH526572	Caernarvonshire	Medieval	CN307

Ystrad Rural Settlement	Deserted Rural Settlement	Betws Garmon	53°05′37″N 4°10′29″W / 53.0935°N 4.1746°W, SH544573	Caernarvonshire	Medieval	CN316

Cored Gwyrfai Fish Weir	Fish weir	Bontnewydd	53°07′22″N 4°18′54″W / 53.1228°N 4.3151°W, SH453607	Caernarvonshire	Medieval	CN334

Castell Cynfal, Bryn Crug	Motte	Bryn-crug	52°35′41″N 4°02′46″W / 52.5946°N 4.0462°W, SH615016	Merionethshire	Medieval	ME121

Caernarfon Town Wall	Caernarfon Town Walls Property in the care of Cadw	Town Wall	Caernarfon	53°08′28″N 4°16′31″W / 53.141°N 4.2754°WCaernarfon Town Wall), SH479626	Caernarvonshire	Medieval	CN034

Caernarfon Castle	Caernarfon Castle Property in the care of Cadw World Heritage Site	Castle	Caernarfon	53°08′22″N 4°16′37″W / 53.1394°N 4.277°W, SH477626	Caernarvonshire	Medieval	CN079

St Beuno's Well, Clynnog Fawr	St Beuno's Well	Holy Well	Clynnog	53°01′08″N 4°22′01″W / 53.0188°N 4.367°W, SH413494	Caernarvonshire	Medieval	CN091

Long Hut North of Cwm Farm	Rectangular hut	Clynnog	52°59′19″N 4°19′58″W / 52.9887°N 4.3327°W, SH435460	Caernarvonshire	Medieval	CN309

Criccieth Castle	Criccieth Castle Property in the care of Cadw	Castle	Criccieth	52°54′58″N 4°13′57″W / 52.916°N 4.2324°W, SH499377	Caernarvonshire	Medieval	CN015

Criccieth Castle, Outer Bank Defences	Castle	Criccieth	52°54′57″N 4°14′02″W / 52.9157°N 4.2338°W, SH499377	Caernarvonshire	Medieval	CN173

Dolbenmaen Castle Mound	Motte	Dolbenmaen	52°57′51″N 4°13′30″W / 52.9642°N 4.2251°W, SH506430	Caernarvonshire	Medieval	CN063

Maes Coch Deserted Rural Settlement	Rectangular hut settlement	Dolgellau	52°43′16″N 3°51′42″W / 52.721°N 3.8617°W, SH743153	Merionethshire	Medieval	ME196

Settlement & Fields Systems above Egryn Abbey	House platform	Dyffryn Ardudwy	52°45′42″N 4°04′10″W / 52.7617°N 4.0695°W, SH604202	Merionethshire	Medieval	ME122

Eithin-Fynydd Platform House Settlement	Deserted Rural Settlement	Dyffryn Ardudwy	52°46′30″N 4°04′38″W / 52.7749°N 4.0771°W, SH599217	Merionethshire	Medieval	ME202

Deserted Rural Settlement South of Ffridd Olchfa	Deserted Rural Settlement	Dyffryn Ardudwy	52°44′47″N 4°03′35″W / 52.7465°N 4.0598°W, SH610185	Merionethshire	Medieval	ME203

Harlech Castle at sundown	Harlech Castle Property in the care of Cadw World Heritage Site	Castle	Harlech	52°51′37″N 4°06′33″W / 52.8602°N 4.1091°W, SH581312	Merionethshire	Medieval	ME044

Medieval Ecclesiastical Structure SE of Ty'n y Coed Cottage	Chapel	Llanbedr	52°49′35″N 4°05′18″W / 52.8265°N 4.0882°W, SH594274	Merionethshire	Medieval	ME249

Dolbadarn Castle, Llanberis Pass	Dolbadarn Castle Property in the care of Cadw	Castle	Llanberis	53°07′00″N 4°06′51″W / 53.1166°N 4.1143°W, SH586598	Caernarvonshire	Medieval	CN066

Cwm Brwynog Deserted Rural Settlement	Deserted Rural Settlement	Llanberis	53°05′24″N 4°06′06″W / 53.0901°N 4.1017°W, SH594574	Caernarvonshire	Medieval	CN315

Rectangular Earthwork 110m NW of Coed Ty Mawr	Moated Site	Llanddeiniolen	53°10′31″N 4°09′46″W / 53.1753°N 4.1629°W, SH555664	Caernarvonshire	Medieval	CN156

Castell Llanddeiniolen	Motte	Llanddeiniolen	53°10′04″N 4°08′29″W / 53.1677°N 4.1414°W, SH569655	Caernarvonshire	Medieval	CN197

Llys Dinorwig	Enclosure	Llanddeiniolen	53°08′47″N 4°09′03″W / 53.1463°N 4.1508°W, SH562631	Caernarvonshire	Medieval	CN223

Pen-Ucha'r-Llan Ringwork	Ringwork	Llandderfel	52°55′07″N 3°34′50″W / 52.9186°N 3.5805°W, SH938368	Merionethshire	Medieval	ME042

Domen Ddreiniog	Motte	Llanegryn	52°36′44″N 4°04′25″W / 52.6121°N 4.0737°W, SH596036	Merionethshire	Medieval	ME054

Cymer Abbey	Cymer Abbey Property in the care of Cadw	Abbey	Llanelltyd	52°45′29″N 3°53′46″W / 52.7581°N 3.8962°W, SH721195	Merionethshire	Medieval	ME001

Cymmer Castle	Motte	Llanelltyd	52°45′31″N 3°52′51″W / 52.7585°N 3.8808°W, SH731195	Merionethshire	Medieval	ME150

Castell y Bere courtyard	Castell y Bere Property in the care of Cadw	Castle	Llanfihangel-y-Pennant	52°39′30″N 3°58′16″W / 52.6583°N 3.9711°W, SH667085	Merionethshire	Medieval	ME023

Pont Maesgwm Deserted Rural Settlement	Deserted Rural Settlement	Llanfrothen	52°58′34″N 4°01′57″W / 52.976°N 4.0324°W, SH635440	Merionethshire	Medieval	ME193

Castell Gronw Castle Mound	Motte	Llangywer	52°54′07″N 3°35′32″W / 52.902°N 3.5921°W, SH930350	Merionethshire	Medieval	ME067

Huts 90m N of Cil Twllan	Platform house	Llanllechid	53°10′40″N 4°02′25″W / 53.1779°N 4.0403°W, SH637664	Caernarvonshire	Medieval	CN144

Cwm Caseg Deserted Rural Settlement	Deserted Rural Settlement	Llanllechid	53°10′39″N 4°01′31″W / 53.1774°N 4.0254°W, SH647664	Caernarvonshire	Medieval	CN314

Ty-Newydd Mound & Bailey Castle	Motte & Bailey	Llannor	52°55′00″N 4°27′37″W / 52.9166°N 4.4604°W, SH346383	Caernarvonshire	Medieval	CN096

Castell Carn Dochan	Castle	Llanuwchllyn	52°51′40″N 3°42′50″W / 52.861°N 3.7139°W, SH847306	Merionethshire	Medieval	ME049

Tomen Fawr	Ringwork	Llanystumdwy	52°54′50″N 4°18′01″W / 52.9139°N 4.3002°W, SH454376	Caernarvonshire	Medieval	CN031

Ffynnon Gybi	Holy Well	Llanystumdwy	52°56′44″N 4°20′32″W / 52.9456°N 4.3421°W, SH427412	Caernarvonshire	Medieval	CN037

Penarth Fawr, near Chwilog, Pwllheli	Penarth Fawr Medieval House Property in the care of Cadw	House (domestic)	Llanystumdwy	52°54′48″N 4°21′09″W / 52.9132°N 4.3524°W, SH419376	Caernarvonshire	Medieval	CN086

Tomen Las Castle Mound	Motte	Pennal	52°35′04″N 3°55′28″W / 52.5845°N 3.9245°W, SH697002	Merionethshire	Medieval	ME043

Inscribed Stone in Llanfihangel Traethau Churchyard	Inscribed stone	Talsarnau	52°53′51″N 4°05′25″W / 52.8975°N 4.0902°W, SH595353	Merionethshire	Medieval	ME050

Llidiart-Garw Platform House and Paddock	Platform house	Talsarnau	52°52′42″N 4°03′51″W / 52.8784°N 4.0641°W, SH611332	Merionethshire	Medieval	ME112

Castell Prysor	Castell Prysor	Motte & Bailey	Trawsfynydd	52°54′53″N 3°50′55″W / 52.9148°N 3.8487°W, SH757368	Merionethshire	Medieval	ME045

Bont Newydd	Bont-Newydd	Bridge	Aber	53°13′42″N 4°00′18″W / 53.2282°N 4.0049°W, SH662720	Caernarvonshire	Post-Medieval/Modern	CN061

Cwm Erch Copper Mine	Copper mine	Beddgelert	53°03′25″N 4°02′24″W / 53.057°N 4.04°W, SH633530	Caernarvonshire	Post-Medieval/Modern	CN193

Glasdir Copper and Gold Mine Mill	Mill	Brithdir and Llanfachreth	52°47′09″N 3°52′17″W / 52.7857°N 3.8715°W, SH738225	Merionethshire	Post-Medieval/Modern	ME206

historic bridge known as "Pont Y Cim"	Pont y Cim	Bridge	Clynnog	53°02′43″N 4°19′35″W / 53.0452°N 4.3263°W, SH441523	Caernarvonshire	Post-Medieval/Modern	CN053

Water Balance Incline at Aberllefenni Slate Quarry	Incline	Corris	52°40′29″N 3°49′26″W / 52.6746°N 3.824°W, SH767101	Merionethshire	Post-Medieval/Modern	ME185

Gorseddau or Ynysypandy Slate Factory	Slate mill	Dolbenmaen	52°58′05″N 4°09′35″W / 52.9681°N 4.1598°W, SH550433	Caernarvonshire	Post-Medieval/Modern	CN160

Gilfach Copper Mine	Copper mine	Dolbenmaen	53°00′25″N 4°11′54″W / 53.0069°N 4.1984°W, SH526477	Caernarvonshire	Post-Medieval/Modern	CN170

Gorseddau Slate Quarry	Railway	Dolbenmaen	52°59′09″N 4°07′40″W / 52.9858°N 4.1279°W, SH572452	Caernarvonshire	Post-Medieval/Modern	CN303

Treforys Deserted Quarry Settlement	Settlement	Dolbenmaen	52°59′11″N 4°08′42″W / 52.9865°N 4.1451°W, SH560453	Caernarvonshire	Post-Medieval/Modern	CN321

Pont Scethin	Pont Scethin	Bridge	Dyffryn Ardudwy	52°47′32″N 4°01′35″W / 52.7922°N 4.0265°W, SH634235	Merionethshire	Post-Medieval/Modern	ME126

Pont Dol-y-Moch	Bridge	Ffestiniog	52°57′22″N 3°57′33″W / 52.9561°N 3.9592°W, SH685416	Merionethshire	Post-Medieval/Modern	ME039

Gold mine Mills	Berth-Llwyd & Cefn Coch Gold Mining Complex	Mill	Ganllwyd	52°47′36″N 3°54′13″W / 52.7932°N 3.9035°W, SH717233	Merionethshire	Post-Medieval/Modern	ME119

Hermon or Dolfwynog Copper/Gold Bog Kiln	Kiln	Ganllwyd	52°48′43″N 3°52′18″W / 52.812°N 3.8716°W, SH739254	Merionethshire	Post-Medieval/Modern	ME198

Cwm Heisian West Lead and Gold Mine	Mill	Ganllwyd	52°50′03″N 3°52′34″W / 52.8343°N 3.876°W, SH737279	Merionethshire	Post-Medieval/Modern	ME204

Pont Llanbedr	Bridge	Llanbedr	52°49′13″N 4°06′02″W / 52.8203°N 4.1006°W, SH585268	Merionethshire	Post-Medieval/Modern	ME026

Dinorwig quarry	Dinorwic Quarry: Hafod Owen Winding Engine, Locomotive Shed, Main Waterwheel and Housing	Wheelhouse	Llanddeiniolen	53°07′13″N 4°06′55″W / 53.1203°N 4.1154°W, SH585602	Caernarvonshire	Post-Medieval/Modern	CN163

Dinorwic Quarry Barracks 'A' Incline	Barracks	Llanddeiniolen	53°07′12″N 4°06′39″W / 53.12°N 4.1108°W, SH586601	Caernarvonshire	Post-Medieval/Modern	CN177

Vivian Slate Quarry, Inclines, Walia & associated structures	Incline	Llanddeiniolen	53°07′28″N 4°06′51″W / 53.1244°N 4.1141°W, SH586606	Caernarvonshire	Post-Medieval/Modern	CN198

Dinorwic Quarry	Slate mill	Llanddeiniolen	53°07′25″N 4°05′48″W / 53.1236°N 4.0966°W, SH597605	Caernarvonshire	Post-Medieval/Modern	CN337

Pont Fawr	Pont Fawr	Bridge	Llandderfel	52°55′02″N 3°30′56″W / 52.9171°N 3.5155°W, SH982366	Merionethshire	Post-Medieval/Modern	ME027

Dinas Dinlle Seagull Trench	Seagull Trench	Llandwrog	53°04′59″N 4°20′07″W / 53.0831°N 4.3354°W, SH436565	Caernarvonshire	Post-Medieval/Modern	CN396

Slate Gwaliau at Felin Fawr, Penrhyn	Wall	Llandygai	53°10′37″N 4°04′26″W / 53.1769°N 4.074°W, SH614664	Caernarvonshire	Post-Medieval/Modern	CN297

Ogwen Fish Weir	Fish weir	Llandygai	53°14′25″N 4°05′39″W / 53.2404°N 4.0943°W, SH600730	Caernarvonshire	Post-Medieval/Modern	CN335

Cegin Viaduct (Penrhyn Railroad)	Viaduct	Llandygai	53°13′48″N 4°06′35″W / 53.2299°N 4.1098°W, SH592723	Caernarvonshire	Post-Medieval/Modern	CN380

Pont Llanelltyd	Llanelltyd Bridge	Bridge	Llanelltyd	52°45′22″N 3°54′04″W / 52.7562°N 3.901°W, SH718193	Merionethshire	Post-Medieval/Modern	ME006

Water Powered Chain Incline at Bryneglwys Slate Quarry	Water Power System	Llanfihangel-y-Pennant	52°37′44″N 3°55′55″W / 52.6289°N 3.9319°W, SH693052	Merionethshire	Post-Medieval/Modern	ME186

Alltwyllt Slate Quarry Incline	Incline	Llanfihangel-y-Pennant	52°38′27″N 3°57′01″W / 52.6407°N 3.9503°W, SH681065	Merionethshire	Post-Medieval/Modern	ME205

Rhosydd Incline, Drumhouse & Tramway	Industrial monument	Llanfrothen	52°59′52″N 4°00′05″W / 52.9977°N 4.0013°W, SH657463	Merionethshire	Post-Medieval/Modern	ME142

Corn Drying Kiln Near Carn-Gadell Uchaf	Kiln	Llangelynin	52°39′18″N 4°05′14″W / 52.655°N 4.0871°W, SH589084	Merionethshire	Post-Medieval/Modern	ME116

The Holyhead Road: the Ogwen Pass	Road	Llanllechid	53°07′39″N 4°01′21″W / 53.1276°N 4.0226°W, SH647608	Caernarvonshire	Post-Medieval/Modern	CN338

Drws y Coed Copper Mine	Copper mine	Llanllyfni	53°03′29″N 4°10′15″W / 53.0581°N 4.1707°W, SH546534	Caernarvonshire	Post-Medieval/Modern	CN162

Dorothea pumping engine	Dorothea Quarry Beam Engine	Engine house	Llanllyfni	53°03′15″N 4°14′37″W / 53.0542°N 4.2435°W, SH497531	Caernarvonshire	Post-Medieval/Modern	CN165

Dorothea Quarry, Pyramids, Inclines, Mill & Winding Houses, etc.	Engine house	Llanllyfni	53°03′13″N 4°14′21″W / 53.0537°N 4.2393°W, SH500530	Caernarvonshire	Post-Medieval/Modern	CN199

Pen-yr-Orsedd Quarry, Blondins and Associated Structures	Engine house	Llanllyfni	53°03′49″N 4°13′35″W / 53.0635°N 4.2265°W, SH509541	Caernarvonshire	Post-Medieval/Modern	CN208

Ty Mawr East Slate Quarry Winding Engine House	Engine house	Llanllyfni	53°02′57″N 4°14′27″W / 53.0492°N 4.2407°W, SH499525	Caernarvonshire	Post-Medieval/Modern	CN300

Blaen y Cae Slate Quarry	Unclassified site	Llanllyfni	53°03′33″N 4°14′35″W / 53.0591°N 4.243°W, SH497536	Caernarvonshire	Post-Medieval/Modern	CN301

Cloddfa'r Lon Slate Quarry	Slate mill	Llanllyfni	53°03′23″N 4°14′08″W / 53.0564°N 4.2356°W, SH503534	Caernarvonshire	Post-Medieval/Modern	CN302

-	Pont Tai-Hirion Old Bridge	Bridge	Llanycil	52°56′33″N 3°46′56″W / 52.9424°N 3.7821°W, SH803398	Merionethshire	Post-Medieval/Modern	ME028

Capel Gallt-Coed	Chapel	Llanystumdwy	52°56′18″N 4°16′37″W / 52.9382°N 4.277°W, SH470402	Caernarvonshire	Post-Medieval/Modern	CN117

Afon Cynfal Deserted Rural Settlement	Rectangular hut settlement	Maentwrog	52°57′17″N 3°51′35″W / 52.9547°N 3.8597°W, SH751413	Merionethshire	Post-Medieval/Modern	ME190

Afon Goch Deserted Rural Settlement	Longhouse	Maentwrog	52°57′00″N 3°51′30″W / 52.9501°N 3.8582°W, SH753407	Merionethshire	Post-Medieval/Modern	ME191

Pont Minllyn, Afon Dyfi	Pont Minllyn Property in the care of Cadw	Bridge	Mawddwy	52°42′38″N 3°41′21″W / 52.7106°N 3.6891°W, SH859138	Merionethshire	Post-Medieval/Modern	ME094

Dovey Bridge, Machynlleth	Machynlleth Bridge	Bridge	Pennal, (also Machynlleth), (see also Powys)	52°36′02″N 3°51′21″W / 52.6005°N 3.8557°W, SH744019	Also known as Pont ar Dyfi	Merionethshire	Post-Medieval/Modern	MG002

Cei Tyddyn Isa	Quarry	Penrhyndeudraeth	52°56′05″N 4°02′28″W / 52.9348°N 4.0412°W, SH629395	Merionethshire	Post-Medieval/Modern	ME108

Pen-y-Gwryd Pillboxes	Pillbox	Beddgelert	53°04′48″N 4°00′13″W / 53.0799°N 4.0036°W, SH659555	Caernarvonshire	Post-Medieval/Modern	CN397

Dragon's teeth, Fairbourne beach defences	Fairbourne Anti-invasion Defences	Anti-invasion defence site	Arthog	52°41′54″N 4°03′26″W / 52.6983°N 4.0571°W, SH610131	The tank traps stretch for some 3 kilometres (1.9 mi) along the beach	Merionethshire	Post Medieval/Modern	ME252

Anti-invasion Defences 630m E of Cae'r-tyddyn	Anti-tank Obstacle	Brithdir and Llanfachreth	52°44′23″N 3°47′07″W / 52.7396°N 3.7854°W, SH795172	Merionethshire	Post-Medieval/Modern	ME250

Nant Ffrancon Anti-invasion Defences	Anti-invasion defence site	Llandygai, (also Capel Curig), (see also Conwy)	53°07′31″N 4°01′20″W / 53.1252°N 4.0222°W, SH647605	Caernarvonshire	Post-Medieval/Modern	CN399

Anti-invasion Defences 2000m NE of Cwmrhwyddfor Farm	Anti-tank Obstacle	Llanfihangel-y-Pennant	52°42′13″N 3°50′57″W / 52.7036°N 3.8492°W, SH751133	Merionethshire	Post-Medieval/Modern	ME251

Sentence(s)

In Gwynedd, the prehistoric sites are in two lists, covering sites in Merionethshire, and sites in Caernarvonshire.

final_sentence: In Gwynedd, the prehistoric sites are in two lists, covering sites in Merionethshire, and sites in Caernarvonshire.