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Bryn Mawr Camp is a prehistoric hillfort situated in Wales on bedrock comprising Caradoc Rocks, a sequence of mudstone, siltstone and sandstone laid down during the Caradocian period. The site exploits the natural defensive properties of this geology, with the underlying strata providing a stable foundation for the ramparts and ditches characteristic of Iron Age hillforts in the Welsh landscape. The Caradoc Rocks formation, exposed across much of central Wales, offered quarryable stone for construction and contributed to the natural topography that made this location strategically valuable.
The hillfort follows the conventional hillfort plan, with earthwork defences positioned to command views across the surrounding terrain. The choice of this particular hilltop reflects the builder's understanding of both the strategic geography and the solid, workable bedrock beneath. The mudstone and siltstone base would have drained differently from the surrounding slopes, creating distinct environmental conditions within the defended enclosure.
Today Bryn Mawr Camp is protected by Cadw, the Welsh heritage monuments service, as a scheduled ancient monument under reference MG158. The site preserves evidence of prehistoric settlement and territorial control in Wales, surviving as an upstanding earthwork that remains legible across the landscape and continues to define the topography of its hilltop location.
Bryn Mawr Camp is a scheduled monument protected by Cadw under reference MG158. View the official record →
Bryn Mawr Camp is a prehistoric hillfort situated in Wales on bedrock comprising Caradoc Rocks, a sequence of mudstone, siltstone and sandstone laid down during the Caradocian period. It is designated a Scheduled Ancient Monument by Cadw under reference MG158.
Bryn Mawr 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.
Bryn Mawr 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 MG158.
Several scheduled monuments lie within 10 km, including Collfryn Enclosure & Field System (3.4 km), Offa's Dyke: Section extending 3000m SE to Bele Brook, Llandrinio (4 km), Llandrinio Bridge (5.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Bryn Mawr 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.
Bryn Mawr Camp stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.