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Offa's Dyke is a linear earthwork monument constructed during the late eighth century, most likely under the direction of King Offa of Mercia, to demarcate the border between the Anglo-Saxon kingdom of Mercia and the Welsh principalities to the west. The section at Madgett Hill, located in Gloucestershire, represents part of this extensive defensive and boundary system which extends for approximately 177 kilometres from the Severn Estuary to the Dee Estuary. At this location the dyke survives as an earthen bank and ditch, characteristic of the monument's construction across much of its length, and remains a significant landscape feature demonstrating medieval territorial organisation and engineering. The survival of the Madgett Hill section contributes to understanding the overall strategic and political importance of Offa's Dyke as a marker of frontier control during the early medieval period.
Offa's Dyke: section on Madgett Hill, 290m south east of Brook House is a scheduled monument protected by Historic England under reference 1020598. View the official record →
Offa's Dyke is a linear earthwork monument constructed during the late eighth century, most likely under the direction of King Offa of Mercia, to demarcate the border between the Anglo-Saxon kingdom of Mercia and the Welsh principalities to the west. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1020598.
Offa's Dyke: section on Madgett Hill, 290m south east of Brook House 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 1020598.
Several scheduled monuments lie within 10 km, including Chepstow Castle (7.4 km), Bishop Barnet's Wood Camp (7.7 km), Chepstow Town Wall and Gate (8 km).
This page is just one thread. A full Aubrey report pulls together 15 strands of Offa's Dyke: section on Madgett Hill, 290m south east of Brook House'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, 290m south east of Brook House stands on Upper Devonian Rocks (Undifferentiated), bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.