© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Earthworks SE of Clyn-Derwen is a prehistoric enclosure situated in Wales on bedrock composed of Caradoc Rocks, a formation of mudstone, siltstone and sandstone dating to the Caradocian period. The monument comprises earthen banks and ditches that define an enclosed space typical of Iron Age settlement sites in Britain, though such enclosures were sometimes occupied or reused across several prehistoric periods. The underlying geology of the site—relatively soft sedimentary rocks prone to weathering—would have influenced both the construction techniques available to its builders and the visibility of the earthworks today. The monument is protected by Cadw under reference CM065, ensuring its preservation as a significant record of prehistoric land use and social organisation in the Welsh landscape. The enclosure's form and scale reflect the agricultural and defensive priorities of Iron Age communities in this region.
Earthworks SE of Clyn-Derwen is a scheduled monument protected by Cadw under reference CM065. View the official record →
Earthworks SE of Clyn-Derwen is a prehistoric enclosure situated in Wales on bedrock composed of Caradoc Rocks, a formation of mudstone, siltstone and sandstone dating to the Caradocian period. It is designated a Scheduled Ancient Monument by Cadw under reference CM065.
Earthworks SE of Clyn-Derwen dates from the prehistoric period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.
Earthworks SE of Clyn-Derwen 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 CM065.
Several scheduled monuments lie within 10 km, including Narberth Mountain Enclosure (6 km), Molleston Camp (7 km), Blaengwaith-Noah Camp (7.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Earthworks SE of Clyn-Derwen'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.
Earthworks SE of Clyn-Derwen stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.