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Cof Cymru: National Historic Assets of Wales · Wales

Gorad Friars Bach Fish Weir

Beaumaris, Isle of Anglesey, Wales

The record

Designation
Scheduled monument
Site type
Fish Weir
Period
Post Medieval
Date of designation
7 February 2003
Community
Beaumaris
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates (centre of the scheduled area)
53.27829, -4.07887
SAM number
AN140
Cadw record number
3904

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 1608 "(13) Cambriae Typus." (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.

The monument consists of the well-preserved remains of a fish weir, dating to the post-medieval period. A fish weir is usually characterised by a foundation of stone topped with a fence or row of stakes, often with nets attached forming an enclosure within a river or harbour and used for catching, or holding, fish. Gorad Friars Bach Fish Weir comprises stone banks some 4m wide and 0.5m high. The inner arm runs at 90 degrees from the shore and is some 75m long. The outer arm then runs at 90 degrees from this (to the south-west) and is 88m long. From the end of the outer arm, a spur turns back towards the shore at an angle of 45 degrees for 20m. An unusual further spur then turns back into the interior of the trap. This can be traced for about 15m.

The monument is of national importance for its potential to enhance our knowledge of medieval or post-medieval maritime agricultural practices. Standing within 1km of the weirs at Trecastell (AN141 SH 6210 7860) and Aberlleiniog (AN142 and AN143 SH 6250 7920), the site has significant group value. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques. The presence of anaerobic silts indicates that the site could retain preserved wood.

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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