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Offa's Dyke is a substantial linear earthwork constructed in the late eighth century under the direction of King Offa of Mercia to define and defend the Anglo-Saxon frontier with Wales. This particular section, measuring approximately 270 metres in length and situated south of Pen-y-Bryn in Clwyd, comprises a ditch and bank typical of the monument's construction, with the bank rising to a considerable height above the ditch on the English side. The dyke extends for some 240 kilometres along the Welsh border and represents one of the most ambitious engineering projects of Anglo-Saxon England, marking both a territorial boundary and a statement of political power. This section survives as an upstanding earthwork of archaeological and historical importance, demonstrating the scale and ambition of eighth-century frontier management.
Offa's Dyke: section 300yds (270m) long, S of Pen-y-Bryn Also in Clwyd: Wales is a scheduled monument protected by Historic England under reference 1006265. View the official record →
Offa's Dyke is a substantial linear earthwork constructed in the late eighth century under the direction of King Offa of Mercia to define and defend the Anglo-Saxon frontier with Wales. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1006265.
Offa's Dyke: section 300yds (270m) long, S of Pen-y-Bryn Also in Clwyd: Wales is a Scheduled Ancient Monument, legally protected by Historic England (NHLE) — the body responsible for designating and safeguarding heritage sites in England. The official designation reference is 1006265.
Several scheduled monuments lie within 10 km, including Offa's Dyke: section one mile 1000yds (2520m) long, N of Llanforda Mill (7.9 km), Oswestry Castle: motte and adjoining section of the town wall immediately north east of Christ Church (8 km), Wat's Dyke:80m long section and adjacent cultivation terraces 540m east of Oswestry Castle (8.2 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Offa's Dyke: section 300yds (270m) long, S of Pen-y-Bryn Also in Clwyd: Wales'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.
Offa's Dyke: section 300yds (270m) long, S of Pen-y-Bryn Also in Clwyd: Wales stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.