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Offa's Dyke is an early medieval linear earthwork, one of the most substantial monuments of its kind in Britain. The sections extending 675 metres south from the centre of Goppas Wood form part of this remarkable frontier work, constructed during the reign of King Offa of Mercia in the late eighth century to define and defend the border between Welsh and English territories. Built across undulating terrain underlain by Wenlock rocks—a combination of mudstone, siltstone and sandstone deposited during the Silurian period—the dyke displays the considerable engineering effort invested in its construction. The earthwork's course through this landscape demonstrates how its builders adapted the barrier to local topography, taking advantage of natural slopes and geological features to maximize its defensive effectiveness. The monument is now protected by Cadw under reference MG152.
Offa's Dyke: Sections extending 675m S from centre of Goppas Wood is a scheduled monument protected by Cadw under reference MG152. View the official record →
Offa's Dyke is an early medieval linear earthwork, one of the most substantial monuments of its kind in Britain. It is designated a Scheduled Ancient Monument by Cadw under reference MG152.
Offa's Dyke: Sections extending 675m S from centre of Goppas 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: Sections extending 675m S from centre of Goppas 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 MG152.
Several scheduled monuments lie within 10 km, including Offa's Dyke: section 400yds (370m) long S of Rownal Covert (8.8 km), Motte castle at the south end of East Dudston hamlet (8.9 km), Hen Domen Pre-Conquest Fields (8.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Offa's Dyke: Sections extending 675m S from centre of Goppas Wood'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: Sections extending 675m S from centre of Goppas Wood stands on Wenlock Rocks (Undifferentiated), bedrock that formed in the Wenlock. The rock here is mudstone, siltstone and sandstone.