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HILLFORTS
Dwyfor / Merioneth
Castell Caerau – Iron Age hillfort – Dolbenmaen SH509439
Craig y Tyddyn – defensive enclosure – Dolbenmaen SH505427
Tyddyn-Graig, Castell Dolwgan Uchaf – Possible early Iron Age Hillfort – Dolbenmaen SH51354355
Moel y Gest – Iron Age hillfort (stone walled enclosure) – Porthmadog SH54923893
Dinas Emrys – Iron Age / Romano-British / early medieval (rems)– Beddgelert SH607491
Dinas – Iron Age defended hillfort – Beddgelert SH591488
Pen y Gaer – Iron Age defensive hillfort – (nr Aberglaslyn Pass) Nantmor SH586457
Moel Dinas – Iron Age / Roman era enclosed hillfort – Llanfrothen SH62574230
Ynysfor – Iron Age hillfort / Roman – small circular hillfort on an estuary outcrop – Llanfrothen SH59934276
Bryn y Castell – Iron Age hillfort (partly reconstructed) – Ffestiniog SH72824298
Tre’r Ceiri – Iron Age hillfort / Romano-British (150 huts circles) – Llanaelhaearn SH373447
Pen y Gaer – Iron Age hillfort – Llanaelhaearn SH428455
Carn Pentyrch – Iron Age defensive hillfort –Llangybi, Four Crosses SH424417
Garn Boduan – late Iron Age hillfort (170 hut circles) – Nefyn SH311391
Porthdinllaen – Iron Age promontory fort (much ruined by golf course) – Morfa Nefyn SH275418
Garn Fadrun – Iron Age fort / Romano-British / early medieval castle (rems) – Tudweiliog SH280350
Garn Saethon – defensive enclosure – (nr Garn Fadrun) Llanfihangel SH298338
Pen y Gaer (Llanbedrog) – Iron Age promontory hillfort – Llanbedrog SH323314
Nant y Castell – Iron Age hillfort – (opposite side of the valley to Pen-y-Gaer) – Llanbedrog SH32153143
Pen y Gaer (Abersoch) – Iron Age defensive hillfort – Abersoch SH298282
Castell – Iron Age hillfort – Llanengan SH294267
Pared Mawr /Porth Ceiriad – Iron Age promontory fort – Llanengan SH303246
Castell Caeron – Iron Age hillfort – Botwnog SH232303
Conion – Iron Age defensive enclosure – Rhiw SH230283
Creigiau Gwineu – defensive hillfort – Mynydd y Graig, Rhiw SH228274
Castell Odo – Iron Age Celtic hillfort – Aberdaron SH188284
Moel Goedog – late Bronze Age to early Iron Age Hillfort – Harlech SH61363250
Pen y Dinas / Castell Dinas Gortyn – late Iron Age hillfort – Tal y Bont, Dyffryn Ardudwy SH60632086
Craig y Dinas – Iron Age defensive walled Hillfort – Dyffryn Ardudwy SH62442300
Craig yr Aderyn – Iron Age double defensive walled hillfort – Abergynolwyn SH64510683
