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Llantrithyd Camp is a prehistoric enclosure located in Wales and protected by Cadw under reference GM257. The site occupies ground underlain by the Lias Group, a sequence of mudstone, siltstone, limestone and sandstone bedrock formed during the Aalenian period of the Jurassic. This geological foundation would have offered mixed conditions for settlement, with softer mudstones and siltstones suitable for cultivation where exposed, and harder limestone outcrops providing natural defensive features across the landscape.
The enclosure follows a broadly circular plan, defended by a single substantial bank and ditch system typical of prehistoric fortified settlements. Such camps served multiple functions across prehistoric Wales, including defensive strongholds, stock corrals and ceremonial gathering places. The specific character of the site—its scale, construction method and positioning—reflects the strategic and economic priorities of its builders.
The surrounding terrain and the properties of the underlying Jurassic strata would have influenced the camp's construction and use. The mixture of soft and resistant rock types available locally would have shaped both the resources available to the community and the defensive qualities the enclosure could achieve. Though the date of construction cannot be determined from visual inspection alone, the site's form places it within the broader tradition of British prehistoric earthworks that flourished over many centuries.
Llantrithyd Camp is a scheduled monument protected by Cadw under reference GM257. View the official record →
Llantrithyd Camp is a prehistoric enclosure located in Wales and protected by Cadw under reference GM257.
Llantrithyd Camp dates from the prehistoric period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.
Llantrithyd 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 GM257.
Several scheduled monuments lie within 10 km, including East Orchard Manor House (5.2 km), Deserted Medieval Village North East of Rock Farm (5.3 km), East Orchard Wood Pillbox (5.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Llantrithyd 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.
Llantrithyd Camp stands on Lias Group, bedrock that formed in the Aalenian. The rock here is mudstone, siltstone, limestone and sandstone.