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Trecastell Fish Weir is a post-medieval fish trap structure located in Anglesey, Wales, and is registered as a scheduled ancient monument under Cadw reference AN141. The weir represents a traditional method of fishing exploitation utilising tidal movement to capture fish in shallow coastal waters, a practice common along Welsh shores during the early modern period. The monument survives as a stone or masonry construction designed to channel and trap fish as tidal waters receded, reflecting the economic importance of marine resources to local communities. Such weirs form part of the broader maritime heritage of Anglesey and demonstrate the practical engineering solutions developed by Welsh fishing communities to harvest seafood resources sustainably over centuries.
Trecastell Fish Weir is a scheduled monument protected by Cadw under reference AN141. View the official record →
Trecastell Fish Weir is a post-medieval fish trap structure located in Anglesey, Wales, and is registered as a scheduled ancient monument under Cadw reference AN141. It is designated a Scheduled Ancient Monument by Cadw under reference AN141.
Trecastell Fish Weir 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.
Trecastell Fish Weir 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 AN141.
Several scheduled monuments lie within 10 km, including Henge Monument and Cursus (8.1 km), Cras, cairn to N of (8.2 km), Cras Cairn (8.5 km).
Aubrey generates in-depth historical research for any address in Britain — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Trecastell Fish Weir