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Offa's Dyke: Vron Farm Section is an early medieval linear earthwork that forms part of the extensive frontier work constructed between England and Wales. This section of the dyke lies across the Pennine and South Wales Middle Coal Measures Formation, bedrock composed principally of mudstone, siltstone and sandstone with bands of coal and ironstone, laid down during the Moscovian period of the Carboniferous. The underlying geology of ferricrete would have presented both opportunities and challenges for the original builders, providing stable ground in places but harder material to excavate in others.
The Vron Farm section is one of many stretches of Offa's Dyke that survives today across the Welsh borderlands, the most substantial of the early medieval earthworks defining the frontier between the Anglo-Saxon kingdom of Mercia and the Welsh kingdoms. The monument is protected by Cadw, the Welsh heritage organisation, under statutory designation.
The dyke's survival at this location owes much to the solid bedrock beneath, which has preserved the earthwork's form across centuries of agricultural use. The section demonstrates the scale of effort invested in constructing this formidable boundary, with its profile moulded from the local geology of the borderland landscape.
Offa's Dyke: Vron Farm Section is a scheduled monument protected by Cadw under reference DE113. View the official record →
Offa's Dyke: Vron Farm Section is an early medieval linear earthwork that forms part of the extensive frontier work constructed between England and Wales. It is designated a Scheduled Ancient Monument by Cadw under reference DE113.
Offa's Dyke: Vron Farm 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.
Offa's Dyke: Vron Farm 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 DE113.
Several scheduled monuments lie within 10 km, including Gardden Camp (7.1 km), Offa's Dyke: Y Gardden Camp Section (7.4 km), Wat's Dyke: Section extending from Black Brook Bridge to Pentre-Clawdd (7.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Offa's Dyke: Vron Farm Section'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: Vron Farm Section stands on Pennine Middle Coal Measures Formation And South Wales Middle Coal Measures Formation (Undifferentiated), bedrock that formed in the Moscovian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.