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Castell Nantperchellan is a prehistoric enclosure located in Wales and protected as a scheduled monument by Cadw under reference CD074. The site occupies ground underlain by Ashgill Rocks, a geological formation of Ordovician age comprising mudstone, siltstone and sandstone that would have weathered to create the shallow soils typical of upland Welsh terrain. The underlying bedrock of this composition influences the character of the landscape, producing the drainage and vegetation patterns that would have shaped settlement choices in prehistoric times.
The enclosure itself represents a form of settlement or land management strategy employed by prehistoric communities in Wales. Such enclosed sites typically served defensive, ceremonial or pastoral functions, though the specific purpose of this particular example cannot be determined without excavation. The monument's survival to the present day, protected under statutory guardianship, reflects the significance of such sites to understanding prehistoric Welsh settlement patterns and social organisation.
The Ashgill bedrock that foundations this monument connects it geologically to a broader landscape of similar Ordovician formations across mid-Wales. This geological setting would have influenced not only the practicality of habitation but also the availability of stone for construction and the character of resources accessible to its prehistoric inhabitants.
Castell Nantperchellan is a scheduled monument protected by Cadw under reference CD074. View the official record →
Castell Nantperchellan is a prehistoric enclosure located in Wales and protected as a scheduled monument by Cadw under reference CD074.
Castell Nantperchellan dates from the prehistoric period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.
Castell Nantperchellan 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 CD074.
Several scheduled monuments lie within 10 km, including Cwm-Pen-y-Benglog Camp (8.1 km), Castell Dyffrynmawr (8.2 km), Round Barrow on W Slope of Freni Fawr (8.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Castell Nantperchellan'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 Nantperchellan stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.