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Offa's Dyke is a linear earthwork constructed during the late eighth century under the direction of King Offa of Mercia to demarcate the boundary between his kingdom and the Welsh territories to the west. The section on Madgett Hill, located 580 metres west of The Old Mill in Gloucestershire, comprises a substantial bank and ditch formation that survives as a prominent archaeological feature in the landscape. At this point along the dyke's course, the earthwork demonstrates the engineering effort invested in establishing this frontier, with the bank rising significantly above the surrounding terrain and the associated ditch forming a marked depression. The monument represents a critical phase in Anglo-Saxon frontier management and territorial definition during the late eighth century, and its survival enables study of both the construction methods and the strategic positioning of this major defensive and political boundary.
Offa's Dyke: section on Madgett Hill, 580m west of The Old Mill is a scheduled monument protected by Historic England under reference 1020600. View the official record →
Offa's Dyke is a linear earthwork constructed during the late eighth century under the direction of King Offa of Mercia to demarcate the boundary between his kingdom and the Welsh territories to the west. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1020600.
Offa's Dyke: section on Madgett Hill, 580m west of The Old Mill 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 1020600.
Several scheduled monuments lie within 10 km, including Chepstow Castle (7 km), Bishop Barnet's Wood Camp (7.3 km), Chepstow Town Wall and Gate (7.5 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Offa's Dyke: section on Madgett Hill, 580m west of The Old Mill'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 Madgett Hill, 580m west of The Old Mill stands on Upper Devonian Rocks (Undifferentiated), bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.