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Cof Cymru: National Historic Assets of Wales · Wales

Dinas Porth Ruffydd

Trearddur, Isle of Anglesey, Wales

The record

Designation
Scheduled monument
Site type
Hillfort
Period
Prehistoric
Date of designation
16 June 1978
Community
Trearddur
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates (centre of the scheduled area)
53.28187, -4.66712
SAM number
AN121
Cadw record number
2547

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1799 "Ireland." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Monument.

A promontory separated from the mainland by a deep chasm which makes the site nearly inaccessible. A grassed-over bank 0.5 m high runs along the landward side of the promontory, turning at the E end to run for a further 10 m along the cliff edge. Possible hut sites occupy the interior.

An Antoninianus of the late 3rd C AD and two Romano-British bronze ox-head bucket-handle mounts, also probably of 3rd C date, were found as the result of the use of a metal detector in March 1977.

The monument is of national importance for its potential to enhance our knowledge of Romano British/Prehistoric settlement and defence. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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