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Caerau Roman Site is a Roman fort located in Wales, protected by Cadw under reference BR148. The fort stands on bedrock composed of Ashgill Rocks, undifferentiated mudstone, siltstone and sandstone deposited during the Ashgill period. This solid geological foundation provided a stable base for the military installation's substantial timber and stone structures.
Roman forts in Wales typically served as strategic garrison points during the conquest and occupation of the province, controlling communications routes and suppressing local resistance. The Ashgill bedrock underlying Caerau would have offered good drainage for the fort's compounds, whilst the surrounding landscape provided essential resources of water and timber for construction and daily operations.
The site's preservation under Cadw's guardianship reflects its importance to understanding Roman military presence in Wales. The fort's location within the geology of the Welsh borderlands, where Ashgill rocks form part of the ancient geological framework, anchors this monument within both the military history of Roman Britain and the natural landscape that shaped settlement patterns during the Roman period.
Caerau Roman Site is a scheduled monument protected by Cadw under reference BR148. View the official record →
Caerau Roman Site is a Roman fort located in Wales, protected by Cadw under reference BR148.
Caerau 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.
Caerau 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 BR148.
Several scheduled monuments lie within 10 km, including Caerau Castle Mound (0.1 km), Fforest Castle Mound (1.9 km), Tynewydd Roman road (2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Caerau 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.
Caerau Roman Site stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.