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Cefn-Caer Roman Site is a Roman fort in Wales, protected as a monument of national importance by Cadw. The fort stands upon bedrock of Llandovery age, a geological formation comprising mudstone, siltstone and sandstone that would have presented particular challenges for Roman military engineers seeking to construct stable foundations for their installations. The underlying geology of this region shaped both the practical constraints and possibilities available to the Roman garrison.
Roman forts of this period typically accommodated a military unit and served as control points for road networks and frontier regions. The location of Cefn-Caer, built upon the variable sedimentary deposits of the Llandovery formation, reflects the strategic importance the Romans placed on establishing their presence across Wales despite the variable terrain and shifting ground conditions they encountered.
Today the site remains a significant archaeological record of Roman occupation in Wales. Its protection by Cadw ensures that the physical remains and the geological evidence of Roman activity at this location are preserved for continued study and public access. The fort contributes to our understanding of how Roman military infrastructure was adapted to the landscape and geology of the Welsh interior.
Cefn-Caer Roman Site is a scheduled monument protected by Cadw under reference ME009. View the official record →
Cefn-Caer Roman Site is a Roman fort in Wales, protected as a monument of national importance by Cadw. It is designated a Scheduled Ancient Monument by Cadw under reference ME009.
Cefn-Caer Roman Site dates from the roman period, and is classified as a fort. It is one of over 32,000 scheduled monuments protected across the UK.
Cefn-Caer Roman Site 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 ME009.
Several scheduled monuments lie within 10 km, including Ystrad Einion Lead Mine Buildings and Water Wheel (6.3 km), Pemprys Rural Settlement (6.4 km), Bryndyfi Lead Mine (7.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cefn-Caer Roman Site'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.
Cefn-Caer Roman Site stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.