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Allt Lwyd Cairn II is a prehistoric round cairn located in Wales and protected by Cadw under the reference ME215. Round cairns of this type were typically constructed during the Bronze Age as burial monuments, often serving as communal or individual grave markers across the upland regions of Wales and Britain. These monuments represent a significant phase of ritual funerary practice and landscape use by early farming communities.
The cairn sits upon bedrock formed from unnamed extrusive rocks of Ordovician age, composed of mafic lava and mafic tuff. This ancient volcanic geology, laid down over 450 million years ago, provided the stone-rich terrain characteristic of many Welsh upland areas where cairns were built. The presence of readily available stone would have made this location practical for monument construction, allowing builders to gather materials from the immediate landscape.
Today, Allt Lwyd Cairn II remains a marker of Bronze Age land use and burial practice in the Welsh uplands. The survival of the monument, alongside others in the region, demonstrates how these communities modified and invested in their landscape through the construction of enduring stone structures. Its protection by Cadw ensures its preservation as a record of prehistoric human activity and cultural practice.
Allt Lwyd Cairn II is a scheduled monument protected by Cadw under reference ME215. View the official record →
Allt Lwyd Cairn II is a prehistoric round cairn located in Wales and protected by Cadw under the reference ME215.
Allt Lwyd Cairn II dates from the prehistoric period, and is classified as a round cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Allt Lwyd Cairn II 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 ME215.
Several scheduled monuments lie within 10 km, including Waen Fach Standing Stone (3.8 km), Crop marks (revealed by Aerial photography) SE of Pen-y-Sarn, Bryn-Crug (4.7 km), Domen Ddreiniog (4.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Allt Lwyd Cairn II'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.
Allt Lwyd Cairn II stands on Unnamed Extrusive Rocks, Ordovician, bedrock that formed in the Ordovician. The rock here is mafic lava and mafic tuff.