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Pen-y-Gaer Camp is a prehistoric hillfort located in Wales and protected by Cadw under reference MG085. The monument sits on bedrock comprising Ashgill Rocks of Undifferentiated sequence, a formation of mudstone, siltstone and sandstone laid down during the Ashgill period of the Ordovician. This geology would have provided both challenges and advantages to its prehistoric builders: the softer sedimentary rocks could be worked to create ditches and ramparts, whilst the mixed stone types offered materials for construction.
Hillforts of this type typically date to the Bronze Age or Iron Age, representing centres of settlement, defence or tribal authority. Their positioning on elevated ground provided strategic advantage and visibility across surrounding landscapes. The specific topography and geological foundation of Pen-y-Gaer would have influenced both its defensive capabilities and its role within the broader prehistoric settlement pattern of the region.
The monument remains an important witness to Wales's prehistoric past, demonstrating how communities adapted their engineering and settlement strategies to local terrain and available geological resources. Its protection reflects the archaeological significance of such hillforts in understanding Iron Age society and landscape use across Wales.
Pen-y-Gaer Camp is a scheduled monument protected by Cadw under reference MG085. View the official record →
Pen-y-Gaer Camp is a prehistoric hillfort located in Wales and protected by Cadw under reference MG085.
Pen-y-Gaer Camp dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Pen-y-Gaer Camp 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 MG085.
Several scheduled monuments lie within 10 km, including Bryn-tail Leadworks (0.9 km), Pen y Clun Camp (1.8 km), Penyclun Lead Mine (2.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pen-y-Gaer Camp'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.
Pen-y-Gaer Camp stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.