Scheduled MonumentsWalesAberlleiniog Fish Weir I
Post Medieval · Fish Weir

Aberlleiniog Fish Weir I

Anglesey, Wales
Cadw SAM AN142
Period
Post Medieval
Site type
Fish Weir
Broad class
Maritime
Nation
Wales
Boundary

Scheduled area

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Overview

History & significance

Aberlleiniog Fish Weir I is a post-medieval fish weir located at Aberlleiniog on the Menai Strait in Anglesey, Wales. The structure represents the type of tidal fish trap constructed along Welsh coastal waters to exploit natural tidal movements for the capture of salmon and sea trout. Fish weirs of this period typically employed stone or timber constructions designed to channel migrating fish into holding chambers or pools at specific tidal states. The weir survives as a scheduled ancient monument under Cadw protection, preserving evidence of the maritime economy and fishing practices that sustained Anglesey's coastal communities during the post-medieval period.

Aberlleiniog Fish Weir I is a scheduled monument protected by Cadw under reference AN142. View the official record →

About this monument

Questions & answers

What is Aberlleiniog Fish Weir I?

Aberlleiniog Fish Weir I is a post-medieval fish weir located at Aberlleiniog on the Menai Strait in Anglesey, Wales. It is designated a Scheduled Ancient Monument by Cadw under reference AN142.

What period does Aberlleiniog Fish Weir I date from?

Aberlleiniog Fish Weir I dates from the post medieval period, and is classified as a fish weir. It is one of over 32,000 scheduled monuments protected across Britain.

Who is responsible for protecting Aberlleiniog Fish Weir I?

Aberlleiniog Fish Weir I is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is AN142.

What other scheduled monuments are near Aberlleiniog Fish Weir I?

Several scheduled monuments lie within 10 km, including Settlement Above Ffridd Ddu (8.3 km), Cras, ring cairn to N of (8.5 km), Cras, cairn to N of (8.5 km).

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