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Offa's Dyke is a linear earthwork that forms part of the most substantial surviving section of the eighth-century frontier monument constructed under the direction of King Offa of Mercia. The section on St Briavels Common, immediately south of Sittingreen in Gloucestershire, comprises a substantial bank with an external ditch, running broadly north to south across the common and representing the characteristic construction method employed along this portion of the Welsh border. Dating to the late eighth century, this stretch of the dyke demonstrates the engineering ambition of Mercian authority in defining territorial control between the Anglo-Saxon kingdom and Welsh polities. The earthwork remains prominent in the landscape, its physical form preserving evidence of a major military and political undertaking that shaped the political geography of the Anglo-Welsh borderlands for centuries to come.
Offa's Dyke: section on St Briavels Common, immediately south of Sittingreen is a scheduled monument protected by Historic England under reference 1020525. View the official record →
Offa's Dyke is a linear earthwork that forms part of the most substantial surviving section of the eighth-century frontier monument constructed under the direction of King Offa of Mercia. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1020525.
Offa's Dyke: section on St Briavels Common, immediately south of Sittingreen 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 1020525.
Several scheduled monuments lie within 10 km, including Lancaut promontory fort (7.1 km), Lancaut deserted village (7.3 km), St Arvan's Church Cross-slab (7.6 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Offa's Dyke: section on St Briavels Common, immediately south of Sittingreen'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 on St Briavels Common, immediately south of Sittingreen stands on Upper Devonian Rocks (Undifferentiated), bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.