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Plas yn Dinas is a medieval enclosure situated on Ashgill bedrock, a foundation of mudstone, siltstone and sandstone laid down during the Ashgill period. The monument is protected by Cadw under the reference MG078. Located in Wales, it represents the settlement patterns and land organisation of the medieval period across the region.
The enclosure demonstrates the defensive and domestic priorities of medieval Welsh landholders. Built upon the stable but weathered stone geology beneath the site, its earthwork boundaries would have defined both territorial control and the practical containment of livestock and resources essential to rural medieval life.
Today the monument stands as evidence of the continuous occupation and management of the Welsh landscape from medieval times onwards. Its protection by Cadw ensures the preservation of this significant archaeological record for future study and public understanding of Wales's medieval heritage.
Plas yn Dinas is a scheduled monument protected by Cadw under reference MG078. View the official record →
Plas yn Dinas is a medieval enclosure situated on Ashgill bedrock, a foundation of mudstone, siltstone and sandstone laid down during the Ashgill period. It is designated a Scheduled Ancient Monument by Cadw under reference MG078.
Plas yn Dinas dates from the medieval period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.
Plas yn Dinas 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 MG078.
Several scheduled monuments lie within 10 km, including Gaer Fawr (6 km), Camp 350m NW of Varchoel Hall (revealed by aerial photography) (6.8 km), Guilsfield Moated Site (7.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Plas yn Dinas'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.
Plas yn Dinas stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.