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Castell Prin Camp is a prehistoric hillfort situated in Wales on bedrock of Lower Devonian sandstone and conglomerate. The interbedded geology of this Early Devonian foundation has weathered to create the undulating terrain characteristic of this region, offering both natural defensibility and building stone for the monument's construction.
The site comprises a multivalent earthwork defensive system typical of Iron Age hillforts, with ramparts and ditches exploiting the natural contours of the landscape. Such positions were favoured for their commanding views across surrounding lowland and valley routes, providing strategic vantage points for communities managing regional movement and territorial boundaries.
Castell Prin Camp is protected by Cadw, the Welsh Historic Monuments service, under reference MM130. The site remains an important archaeological record of prehistoric settlement patterns and defensive architecture in Wales, though much of its original form lies beneath vegetation and soil accumulation. The monument's survival demonstrates the durability of earthwork construction across two millennia of weathering and land use change.
Castell Prin Camp is a scheduled monument protected by Cadw under reference MM130. View the official record →
Castell Prin Camp is a prehistoric hillfort situated in Wales on bedrock of Lower Devonian sandstone and conglomerate. It is designated a Scheduled Ancient Monument by Cadw under reference MM130.
Castell Prin Camp dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.
Castell Prin Camp 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 MM130.
Several scheduled monuments lie within 10 km, including Wilcrick Hill Camp (4.6 km), Medieval Building adjoining Magor Churchyard (5.6 km), St. Mary's Churchyard Crosses, Magor (5.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Castell Prin Camp'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.
Castell Prin Camp stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is sandstone and conglomerate, interbedded.