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Lower Roman Fort is a Roman fort located in Wales and protected by Cadw under reference CN094. The site occupies ground underlain by Llanvirn Rocks of Whiterock age, a formation of mudstone, siltstone and sandstone that would have presented considerable challenges to Roman engineers conducting the fort's construction.
Roman forts of this type typically served as military installations along frontier zones or supply routes, their layouts characterised by defensive ditches, ramparts and internal structures organised around a central range. The geology beneath Lower Roman Fort—the relatively soft and friable nature of the mudstone and siltstone bedrock—would have influenced both the fort's drainage patterns and the foundations of its buildings during the Roman occupation of Wales.
The fort's archaeological significance lies in its contribution to understanding Roman military strategy and infrastructure in Wales. Cadw's designation recognises its importance as a scheduled monument, protecting the buried remains and surface features that continue to provide evidence of Roman presence in the Welsh landscape during the Imperial period.
Lower Roman Fort is a scheduled monument protected by Cadw under reference CN094. View the official record →
Lower Roman Fort is a Roman fort located in Wales and protected by Cadw under reference CN094.
Lower Roman Fort dates from the roman period, and is classified as a fort. It is one of over 32,000 scheduled monuments protected across the UK.
Lower Roman Fort 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 CN094.
Several scheduled monuments lie within 10 km, including Enclosed Hut Circle Settlement West of Votglas (8.7 km), Penbryn Mawr standing stone (8.8 km), Blaen y Cae Slate Quarry (8.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Lower Roman Fort'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.
Lower Roman Fort stands on Llanvirn Rocks (Undifferentiated), bedrock that formed in the Whiterock. The rock here is mudstone, siltstone and sandstone.