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Castell Bryngwyn is a prehistoric henge monument located on Anglesey, Wales, dating to the Neolithic or Early Bronze Age period. The site comprises a circular or oval earthwork defined by a ditch and external bank, characteristic of henge structures of this era. Such monuments are understood to have served ritual and ceremonial functions for prehistoric communities, though the specific religious practices conducted there remain unclear. The enclosure represents an important example of monumental construction from the third or second millennium before the Common Era in the prehistoric archaeology of North Wales.
Castell Bryngwyn Prehistoric Enclosure is a scheduled monument protected by Cadw under reference AN015. View the official record →
Castell Bryngwyn is a prehistoric henge monument located on Anglesey, Wales, dating to the Neolithic or Early Bronze Age period. It is designated a Scheduled Ancient Monument by Cadw under reference AN015.
Castell Bryngwyn Prehistoric Enclosure dates from the prehistoric period, and is classified as a henge. It is one of over 32,000 scheduled monuments protected across the UK.
Castell Bryngwyn Prehistoric Enclosure 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 AN015.
Several scheduled monuments lie within 10 km, including Enclosed Hut Circle Settlement in Coed Glan-yr-Afon (8.4 km), Enclosed Hut Circle Settlement North of Rhedynog Felen Bach (9.2 km), Hut Circle Settlement East of Dinas-y-Prif (9.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Castell Bryngwyn Prehistoric Enclosure's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Castell Bryngwyn Prehistoric Enclosure stands on Unnamed Metamorphic Rocks, Neoproterozoic, bedrock that formed in the Neoproterozoic. The rock here is hornblende schist.