© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Stackpole Earthwork is a prehistoric enclosure situated in Wales on bedrock composed of Pridoli rocks, a sequence of mudstone, siltstone and sandstone formed during the Pridoli period. The monument is protected by Cadw, the Welsh heritage organisation, under reference PE347. The underlying geology of mudstone and siltstone would have been relatively soft and workable for the communities who constructed this earthwork, though the introduction of sandstone beds would have provided harder stone suitable for tools and structures.
The enclosure represents a form of settlement or territorial marker typical of prehistoric Wales. Such earthworks frequently served multiple purposes: defence, stock management, ritual gathering or a combination of these functions. The specific form and dimensions of Stackpole Earthwork reflect the engineering practices and social needs of its builders.
The monument's survival on this geological foundation has been aided by the stable nature of the bedrock, which has resisted significant erosion despite millennia of exposure to the Welsh climate. The protection afforded by Cadw recognises its importance as evidence of prehistoric land use and social organisation in the region.
Stackpole Earthwork is a scheduled monument protected by Cadw under reference PE347. View the official record →
Stackpole Earthwork is a prehistoric enclosure situated in Wales on bedrock composed of Pridoli rocks, a sequence of mudstone, siltstone and sandstone formed during the Pridoli period. It is designated a Scheduled Ancient Monument by Cadw under reference PE347.
Stackpole Earthwork dates from the prehistoric period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.
Stackpole Earthwork 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 PE347.
Several scheduled monuments lie within 10 km, including Stackpole Warren Standing Stone (1.7 km), Greenala Camp (2 km), Stackpole Warren Hut Group (2.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Stackpole Earthwork'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.
Stackpole Earthwork stands on Pridoli Rocks (Undifferentiated), bedrock that formed in the Pridoli. The rock here is mudstone, siltstone and sandstone.