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Offa's Dyke is a linear earthwork constructed during the late eighth century under the reign of King Offa of Mercia to establish and demarcate the border between the Anglo-Saxon kingdom of Mercia and the Welsh kingdoms to the west. This section extending approximately 1125 metres south-westward to Gilfach Wood in Radnorshire forms part of the longer monument that once stretched for over 240 kilometres across the Welsh-English border. The dyke comprises a substantial ditch with an accompanying bank, representing a significant engineering undertaking of the Early Medieval period designed to regulate movement and control access across the frontier. The survival of this section in Radnorshire, despite later agricultural and environmental modification, contributes to the understanding of Offa's Dyke's construction method and its deployment across difficult terrain in mid-Wales.
Offa's Dyke: Section extending 1125m SW to Gilfach Wood is a scheduled monument protected by Cadw under reference RD020. View the official record →
Offa's Dyke is a linear earthwork constructed during the late eighth century under the reign of King Offa of Mercia to establish and demarcate the border between the Anglo-Saxon kingdom of Mercia and the Welsh kingdoms to the west. It is designated a Scheduled Ancient Monument by Cadw under reference RD020.
Offa's Dyke: Section extending 1125m SW to Gilfach Wood 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 1125m SW to Gilfach Wood 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 RD020.
Several scheduled monuments lie within 10 km, including Three Roman Camps (revealed by aerial photography) NE of Walton (6.6 km), Knapp Farm Mound (6.8 km), Offa's Dyke: Rushock Hill section, extending 1630yds (1490m) E to Kennel Wood (6.8 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 1125m SW to Gilfach Wood