Scheduled MonumentsWalesOffa's Dyke: Brymbo Hill Section
Early Medieval · Linear Earthwork

Offa's Dyke: Brymbo Hill Section

Denbighshire, Wales
Cadw SAM DE109
Period
Early Medieval
Site type
Linear Earthwork
Broad class
Monument
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Offa's Dyke: Brymbo Hill Section is a linear earthwork forming part of the eighth-century frontier boundary between the Anglo-Saxon kingdom of Mercia and Welsh territories. This section of the dyke, located in Denbighshire, comprises an earthen bank and ditch constructed under the direction of King Offa of Mercia, likely during the late eighth century. The monument survives as a substantial upstanding bank with an associated ditch, characteristic of the dyke's construction as a defensive and demarcative barrier across the Welsh borderlands. The Brymbo Hill section contributes to the broader significance of Offa's Dyke as one of the most important linear monuments of Early Medieval Britain and a crucial piece of evidence for understanding the political and territorial geography of the Anglo-Saxon and early medieval Welsh kingdoms.

Offa's Dyke: Brymbo Hill Section is a scheduled monument protected by Cadw under reference DE109. View the official record →

About this monument

Questions & answers

What is Offa's Dyke: Brymbo Hill Section?

Offa's Dyke: Brymbo Hill Section is a linear earthwork forming part of the eighth-century frontier boundary between the Anglo-Saxon kingdom of Mercia and Welsh territories. It is designated a Scheduled Ancient Monument by Cadw under reference DE109.

What period does Offa's Dyke: Brymbo Hill Section date from?

Offa's Dyke: Brymbo Hill Section dates from the early medieval period, and is classified as a linear earthwork. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Offa's Dyke: Brymbo Hill Section?

Offa's Dyke: Brymbo Hill Section is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is DE109.

What other scheduled monuments are near Offa's Dyke: Brymbo Hill Section?

Several scheduled monuments lie within 10 km, including Offa's Dyke: Sections N & S of Bryn yr Owen Colliery (6.9 km), Wat's Dyke: Section extending from Erddig Park to Middle Sontley (7.3 km), Offa's Dyke: Section S of Aberderfyn Road (7.4 km).

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