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Offa's Dyke is a linear earthwork that forms part of the eighth-century defensive and territorial boundary constructed under King Offa of Mercia. This section, extending approximately 2.1 kilometres southward from The Firs near Rhos-y-Meirch in Radnorshire, preserves a substantial portion of the original earthwork comprising a substantial ditch and counterscarp bank. The monument represents one of the most significant engineering achievements of the Early Medieval period in Britain, marking the political and military frontier between the Anglo-Saxon kingdom of Mercia and the Welsh principalities to the west. The earthwork remains archaeologically important as evidence of eighth-century territorial demarcation and the substantial resources required for such large-scale public works.
Offa's Dyke: Section extending 2143m S from The Firs, Rhos-y-Meirch is a scheduled monument protected by Cadw under reference RD019. View the official record →
Offa's Dyke is a linear earthwork that forms part of the eighth-century defensive and territorial boundary constructed under King Offa of Mercia. It is designated a Scheduled Ancient Monument by Cadw under reference RD019.
Offa's Dyke: Section extending 2143m S from The Firs, Rhos-y-Meirch dates from the early medieval period, and is classified as a linear earthwork. It is one of over 32,000 scheduled monuments protected across the UK.
Offa's Dyke: Section extending 2143m S from The Firs, Rhos-y-Meirch 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 RD019.
Several scheduled monuments lie within 10 km, including Churchyard cross in St Michael's churchyard (7.7 km), Womaston Castle Mound (7.7 km), Offa's Dyke: section S of Riddings Brook on Herrock Hill (7.8 km).
Aubrey generates in-depth historical research for any address in the UK — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Offa's Dyke: Section extending 2143m S from The Firs, Rhos-y-Meirch