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Pen-y-gaer Roman Vicus, Cwmdu is a Roman settlement located in Wales, situated on bedrock composed of Lower Devonian rocks formed during the Early Devonian period. The underlying geology comprises mudstone, siltstone and sandstone, which would have provided local building materials for the vicus structures. The settlement represents one of Wales's established Roman roadside communities, where military and civilian populations engaged in trade and administrative functions during the Roman occupation.
The vicus developed in response to Roman military presence in the region, serving as a focal point for economic activity and settlement beyond the confines of a formal fort. Such settlements typically housed merchants, craftspeople and families of military personnel, creating mixed communities with distinctly Roman characteristics integrated alongside local populations. The site's archaeological significance lies in its potential to reveal patterns of Romanisation and daily life during the occupation period.
The monument is protected by Cadw, the Welsh heritage monuments authority, under reference BR427, ensuring its long-term preservation and management. The Lower Devonian bedrock upon which Pen-y-gaer Roman Vicus stands remains visible in the surrounding landscape, forming part of the geological framework that shaped settlement patterns and resource availability in Roman Wales.
Pen-y-gaer Roman Vicus, Cwmdu is a scheduled monument protected by Cadw under reference BR427. View the official record →
Pen-y-gaer Roman Vicus, Cwmdu is a Roman settlement located in Wales, situated on bedrock composed of Lower Devonian rocks formed during the Early Devonian period. It is designated a Scheduled Ancient Monument by Cadw under reference BR427.
Pen-y-gaer Roman Vicus, Cwmdu dates from the roman period, and is classified as a vicus. It is one of over 32,000 scheduled monuments protected across the UK.
Pen-y-gaer Roman Vicus, Cwmdu 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 BR427.
Several scheduled monuments lie within 10 km, including Mynydd Pen-cyrn round cairn (7.8 km), Garn Fawr round cairn (8 km), Twr Pen-cyrn round cairns (8.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pen-y-gaer Roman Vicus, Cwmdu'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 Roman Vicus, Cwmdu stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.