© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Caerleon Legionary Fortress is a Roman military establishment located in Monmouthshire, Wales, which served as a legionary fortress from the late first century AD onwards. The fortress was occupied by the Second Augustan Legion and represents one of the most substantial Roman military installations in Britain, with substantial remains including the amphitheatre, barracks, and portions of the defensive circuit still visible today. Built initially around AD 75 under the direction of the Roman military administration in Britain, the fortress continued in use for approximately two centuries as a key strategic stronghold in the conquest and occupation of Wales. The archaeological deposits and surviving structures at Caerleon provide crucial evidence for understanding Roman military organisation, engineering practice, and settlement patterns in the Welsh frontier zone.
Caerleon Legionary Fortress is a scheduled monument protected by Cadw under reference MM230. View the official record →
Caerleon Legionary Fortress is a Roman military establishment located in Monmouthshire, Wales, which served as a legionary fortress from the late first century AD onwards. It is designated a Scheduled Ancient Monument by Cadw under reference MM230.
Caerleon Legionary Fortress dates from the roman period, and is classified as a legionary fortress. It is one of over 32,000 scheduled monuments protected across the UK.
Caerleon Legionary Fortress 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 MM230.
Several scheduled monuments lie within 10 km, including St Julian's Wood Camp (1.5 km), Newport Castle (3.3 km), St. Mary's Churchyard Cross, Llanwern (4.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Caerleon Legionary Fortress'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.
Caerleon Legionary Fortress stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.