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Morlais Hill ring cairn is a prehistoric ceremonial monument consisting of a circular arrangement of stones, likely constructed during the Bronze Age. Situated in Wales, the cairn occupies ground underlain by Dinantian limestone and associated sedimentary rocks, a geological foundation characteristic of much of the upland terrain in this region. The monument's position on this limestone bedrock, interspersed with sandstone and argillaceous layers, would have required builders to work with locally available stone, shaping their ritual architecture from the landscape itself.
Ring cairns of this type typically functioned as ceremonial or funerary monuments, their circular form marking them out as distinctive from burial cairns proper. The Morlais Hill example sits within a landscape rich in prehistoric activity, where such monuments often clustered along ridge-lines and elevated ground. The precise archaeological character of this individual site—whether it held burials, served ritual purposes, or functioned as a territorial marker—remains embedded in its physical form.
The monument is protected under Cadw's guardianship as GM563, recognising its significance as part of Wales's Bronze Age heritage. Today it remains a testament to the ceremonial life and monumental ambitions of prehistoric Welsh communities, its stones still visible upon the Dinantian bedrock that has endured since the Carboniferous period.
Morlais Hill ring cairn is a scheduled monument protected by Cadw under reference GM563. View the official record →
Morlais Hill ring cairn is a prehistoric ceremonial monument consisting of a circular arrangement of stones, likely constructed during the Bronze Age. It is designated a Scheduled Ancient Monument by Cadw under reference GM563.
Morlais Hill ring cairn dates from the prehistoric period, and is classified as a ring cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Morlais Hill ring cairn 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 GM563.
Several scheduled monuments lie within 10 km, including Graig-y-Gilfach round cairn and earthwork (6.7 km), Carn Castell y Meibion ring cairn (6.7 km), Darren Fawr Round Cairns (7.5 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Morlais Hill ring cairn'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.
Morlais Hill ring cairn stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.