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Offa's Dyke is a linear earthwork that forms part of the eighth-century frontier between the Anglo-Saxon kingdom of Mercia and the Welsh kingdoms to the west. This section at Careg-y-Big in Shropshire measures approximately 180 metres in length and exemplifies the surviving remains of what was originally a much more extensive defensive system constructed under King Offa of Mercia in the late eighth century. The dyke in this location comprises a substantial bank and ditch configuration, typical of the monument's construction across its length. The survival of this section demonstrates the durability of the original earthwork engineering and its continued presence as a significant landscape boundary and archaeological feature.
Offa's Dyke: section 200yds (180m) long, at Careg-y-Big is a scheduled monument protected by Historic England under reference 1006238. View the official record →
Offa's Dyke is a linear earthwork that forms part of the eighth-century frontier between the Anglo-Saxon kingdom of Mercia and the Welsh kingdoms to the west. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1006238.
Offa's Dyke: section 200yds (180m) long, at Careg-y-Big 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 1006238.
Several scheduled monuments lie within 10 km, including Offa's Dyke: section 170m south-east of Fron (5.2 km), Offa's Dyke: section 50yds (45m) long, SW of Crane Rock (6.3 km), Offa's Dyke: section 220yds (200m) long, N from Royal Oak Inn, Treflach Wood (6.7 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Offa's Dyke: section 200yds (180m) long, at Careg-y-Big'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 200yds (180m) long, at Careg-y-Big stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.