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The Bulwark, Llanmadoc Hill is a prehistoric hillfort located in Wales and protected by Cadw under reference GM061. The monument commands the landscape from bedrock of Upper Devonian age, comprising interbedded sandstone and conglomerate formed during the Late Devonian period. This substantial geology provided both a defensible position and the raw material for construction of the fort's defences.
Hillforts of this type typically date to the Iron Age, though some may have origins in the Late Bronze Age. The Bulwark's elevated position would have afforded clear sightlines across the surrounding terrain, essential for a fortified settlement serving both defensive and administrative functions. The ramparted earthworks characteristic of such monuments would have been labour-intensive constructions, indicating organised community effort and suggesting a site of considerable status.
The Bulwark remains an important archaeological monument preserving evidence of Iron Age settlement and social organisation in Wales. Its survival as a recognisable earthwork, protected under Cadw's guardianship, ensures that the physical remains of this fortified settlement continue to inform understanding of prehistoric Welsh communities and their landscape use.
The Bulwark, Llanmadoc Hill is a scheduled monument protected by Cadw under reference GM061. View the official record →
The Bulwark, Llanmadoc Hill is a prehistoric hillfort located in Wales and protected by Cadw under reference GM061.
The Bulwark, Llanmadoc Hill dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
The Bulwark, Llanmadoc Hill 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 GM061.
Several scheduled monuments lie within 10 km, including Deborah's Hole Camp (6.5 km), Cave 40m SE of Deborah's Hole (6.5 km), Horse Cliff Camp (6.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of The Bulwark, Llanmadoc Hill'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.
The Bulwark, Llanmadoc Hill stands on Upper Devonian Rocks (Undifferentiated), bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.