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Trefignath Chambered Tomb is a Neolithic chambered cairn located on the island of Anglesey in north Wales, dating to approximately 4000–3000 BC. The monument comprises a substantial stone-built chamber with multiple compartments, originally covered by a cairn of stacked stones, and represents a significant example of megalithic burial architecture from the early farming communities of prehistoric Wales. The tomb's internal structure reveals evidence of successive phases of construction and use, indicating that it served as a communal burial place for multiple interments over an extended period. The site remains a substantial archaeological witness to Neolithic religious practices and funerary customs in Wales, and is designated and protected as a Scheduled Ancient Monument by Cadw.
Trefignath Chambered Tomb is a scheduled monument protected by Cadw under reference AN011. View the official record →
Trefignath Chambered Tomb is a Neolithic chambered cairn located on the island of Anglesey in north Wales, dating to approximately 4000–3000 BC. It is designated a Scheduled Ancient Monument by Cadw under reference AN011.
Trefignath Chambered Tomb dates from the prehistoric period, and is classified as a chambered round barrow. It is one of over 32,000 scheduled monuments protected across the UK.
Trefignath Chambered Tomb 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 AN011.
Several scheduled monuments lie within 10 km, including Tre-Arddur Hut Group (0.8 km), Ynys Leurad Hut Circles (2.4 km), The Holyhead Road: quay on the Stanley Embankment (2.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Trefignath Chambered Tomb'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.
Trefignath Chambered Tomb stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is metasedimentary rock.