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Offa's Dyke is a linear earthwork that forms part of the extensive defensive frontier constructed during the reign of King Offa of Mercia in the late eighth century. This section, situated on Highbury Plains approximately 370 metres west of Birt's Barn in Gloucestershire, comprises a substantial bank and ditch configuration typical of the monument's construction across the Welsh marches. The earthwork represents one of the most significant territorial boundaries of Anglo-Saxon England, demarcating the political and cultural frontier between the Anglo-Saxon kingdom of Mercia and the Welsh principalities to the west. The monument survives as an upstanding landscape feature and remains an important archaeological record of early medieval land division and royal authority.
Offa's Dyke: section in Highbury Plains, 370m west of Birt's Barn is a scheduled monument protected by Historic England under reference 1020479. View the official record →
Offa's Dyke is a linear earthwork that forms part of the extensive defensive frontier constructed during the reign of King Offa of Mercia in the late eighth century. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1020479.
Offa's Dyke: section in Highbury Plains, 370m west of Birt's Barn 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 1020479.
Several scheduled monuments lie within 10 km, including Tintern Abbey, Precinct Wall (8.3 km), Offa's Dyke: section in Passage Grove, 660m west of Sheepcot (8.3 km), Colwell Grove Limekiln and Quarry, Tintern (8.3 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Offa's Dyke: section in Highbury Plains, 370m west of Birt's Barn'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 in Highbury Plains, 370m west of Birt's Barn stands on Upper Devonian Rocks (Undifferentiated), bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.