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Cnwc Round Cairns is a prehistoric round cairn located in Wales and protected by Cadw as a scheduled ancient monument under reference PE343. The monument sits upon Arenig Rocks, a bedrock formation of mudstone, siltstone and sandstone dating to the Arenigian period. This geological substrate, composed of compacted sedimentary deposits formed in ancient seas, provides the raw material from which the cairn's stones were gathered.
Round cairns of this type typically date to the Neolithic or Bronze Age and served as burial monuments or territorial markers across upland Britain and Wales. Such structures were built by stacking stone to create substantial mounds, often covering graves or cremation deposits of significant community members. The Cnwc example represents an important survival of prehistoric funerary or ceremonial practice in the Welsh landscape.
The monument's preservation within the Cadw estate ensures protection of both the visible cairn structure and any archaeological deposits it may contain. The site's upland setting is characteristic of cairn distribution in Wales, where these monuments are particularly common on higher ground. Such locations would have been visible across considerable distances, making them effective markers within the prehistoric territorial landscape.
Cnwc Round Cairns is a scheduled monument protected by Cadw under reference PE343. View the official record →
Cnwc Round Cairns is a prehistoric round cairn located in Wales and protected by Cadw as a scheduled ancient monument under reference PE343.
Cnwc Round Cairns 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.
Cnwc Round Cairns 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 PE343.
Several scheduled monuments lie within 10 km, including New Moat Castle Mound (5.4 km), Posty Defended Enclosure (7.1 km), Rhiwiau Round Barrow (7.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cnwc Round Cairns'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.
Cnwc Round Cairns stands on Arenig Rocks (Undifferentiated), bedrock that formed in the Arenigian. The rock here is mudstone, siltstone and sandstone.