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Offa's Dyke is a linear earthwork that forms part of the celebrated defensive or demarcatory monument constructed during the reign of King Offa of Mercia in the late eighth century, most likely between 760 and 796. This particular section, located on Highbury Plains south west of Glyn Farm in Gloucestershire, comprises a substantial bank and ditch characteristic of the dyke's construction, and represents a surviving portion of what was originally a far more extensive frontier work stretching across the Welsh Marches. The monument is understood to have served as a territorial boundary between the Anglo-Saxon kingdom of Mercia and Welsh principalities, though scholarly debate continues regarding whether its primary function was defensive, symbolic, or administrative in nature. This section retains sufficient archaeological integrity to contribute valuable evidence to understanding both the engineering capabilities and the geopolitical organisation of eighth-century Mercia.
Offa's Dyke: section in Highbury Plains, 770m south west of Glyn Farm is a scheduled monument protected by Historic England under reference 1020478. View the official record →
Offa's Dyke is a linear earthwork that forms part of the celebrated defensive or demarcatory monument constructed during the reign of King Offa of Mercia in the late eighth century, most likely between 760 and 796. It is designated a Scheduled Ancient Monument by Historic England (NHLE) under reference 1020478.
Offa's Dyke: section in Highbury Plains, 770m south west of Glyn Farm 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 1020478.
Several scheduled monuments lie within 10 km, including St Mary's Church, Chapel Hill (8.5 km), Tintern Abbey, Precinct Wall (8.6 km), Offa's Dyke: section in Passage Grove, 660m west of Sheepcot (8.7 km).
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Research the area around Offa's Dyke: section in Highbury Plains, 770m south west of Glyn Farm