Offa’s Dyke is alive and well, but often found snoring deeply in slumber beneath the surface of modern culture and politics.  To use another mildly implausible analogy, the early medieval linear earthwork, regarded as built by the orders of the Mercian king Offa, is like an iceberg, or perhaps a dormant volcano. It is seemingly untouchable, immovable and with hidden roots and dimensions. It lurks on the border like Grendel in the landscape and perception modern England, and is a defining characteristic of Welshness over 11-and-a-half centuries since its construction.

Looking south along the line of Offa’s Dyke to Carreg-y-big farm, with Baker’s Hill behind on the left

Today, most avoid it or pretend it isn’t there, neglecting it or simply reutilising it for long walks. Welsh and English nationalists alike occasionally drive ships at it in the hope of cracking it or steer it in one direction or another (if you want to go with an iceberg analogy) or pour waters on it (if you see it as volcanic). Still it survives, dormant and monumental.

Offa’s Dyke is inexplicable to many, unknowable to the majority. In places it is too denuded to be appreciated, elsewhere it is completely lost.

Looking S at Carreg-y-big farm, Offa’s Dyke is partly obscured in the modern farmyard, and is a denuded earthwork upon leaving the farm. It then survives better as it enters an historic hedgeline

Yet simultaneously, even where it survives best, it is simply too big to look at for most and even professional archaeological surveys have been conducted along only very short stretches of its length; something which is shocking to apprehend in 2017!

Some see it as a visionary military and political achievement, a few regard it as a folly and a delusion. Some even deny it exists as a coherent monument at all.

Looking N along the western face of Offa’s Dyke, Carreg-y-big farm

Offa’s Dyke and the modern border of England and Wales weave alongside each other from the Severn to the approaches to the Dee estuary. Yet, there are actually only 4 significant stretches of the known line of the 8th-century linear earthwork known as ‘Offa’s Dyke’ that closely coincide with the modern English-Welsh border. Only 4, although there are multiple places where they intersect or run in close proximity for short distances.

Looking S along the western face of Offa’s Dyke where it navigates a small stream

These 4 sections are important for understanding the early medieval earthwork. The coincidence with the modern border not only reveals shared topographical dimensions (following ridges and rivers), but also long-running, complex, varied, but still historical, political relationships between aspirations of the 8th century and the present. Running from aspirations to create a ‘Mercian March’ (using Ray and Bapty’s 2016 book’s term), Offa’s Dyke seems rapidly to have been abandoned, but was succeeded by many subsequent aspirations to control and consolidate a frontier between the Dee and the Severn through the later Middle Ages to the present day.

Offa’s Dyke operating as a water course, north of Carreg-y-beg farm

Taking these from south to north, the 4 areas of coincide between early medieval and modern frontier are:

  1. following the River Wye from Chepstow to Redbrook, and then again up to  Symmond’s Yat and Welsh Bicknor. I will discuss my recent visit to this section in a future post (disputed by some as part of Offa’s Dyke but reinstated in arguments by Ray and Bapty, 2016);
  2. a straight stretch to the east of Montgomery across the Vale of Montgomery from south of Pen-y-bryn Hall to the River Camlad;
  3. a very short stretch of the monument as it rises up from the Severn onto Llanymynech Hill (while modern boundary and extant earthwork hardly coincide, they both utilise the hill);
  4. The northernmost is a stretch west of Selattyn Hill, from Carreg-y-big farm, through Orseddwen and Craignant to Bronygarth.
Looking S along Offa’s Dyke, west of Selattyn Lodge

I wish to address aspects of the last of these. Having previously walking north from Craignant to Bronygarth, I recently walked south from Craignant to Carreg-y-big before retracing my steps north from Craignant. The dyke here is frustrating for the visitor/walker because:

  • there are sections where the publicly accessible Offa’s Dyke path diverts from the earthwork, so there are sections not accessible to the public, including where farms sit upon the dyke;
  • as is so often the case, public access is to the uphill eastern side, making it frequently difficult to appreciate the monument’s appearance and interactions with topography from the west (downhill) ‘Welsh’ side;
  • it enters woodland in places, making it difficult to apprehend its character and topographical relationships;
  • it survives to various states of monumentality – some variation might be to do with historical variations in land-use, others clearly related to differing performances of the dyke in the landscape.
An arboreal bridge: a tree fallen, presumably in Storm Doris, if not before, over the line of the dyke from ‘Wales’ into ‘England’

Despite these challenges, this stretch allows the visitor to appreciate its careful emplacement in the landscape as the dyke negotiates the steep terrain from the Morlas Brook around the western slopes of Selattyn Hill and Baker’s Hill. In doing so, it responds to topography. Also, it was built in linear stretches which link together key angles where the monument shifts direction.

Looking N along Offa’s Dyke towards Orseddwen, with Selattyn Hill in the distance, near Selattyn Lodge
Unquestionable quarry ditches behind (on the E side) of Offa’s Dyke. Looking S along its line as it overlooks Craignant Wood and the Morlsa Brook

One can see quarries to the dyke’s east, seemingly unsurveyed, that were used to create the bank, while material from the ditch might have also been used, as well as to create a counterscarp bank apparent in places.

A tributary of the Morlas Brook, navigated by the dyke as it adapts its route to approach the stream perpendicular to its course. When it gets to the stream it runs straight down to the stream on both sides (just to the viewer’s R of the bridge)

It is possible to see how it boldly negotiates two minor water courses; a tributary of the Morlas Brook, and another short-running stream, where the dyke’s ditch actually because a modern water course.

Looking S along the dyke from atop its bank: west of Selattyn Hill. A clear counterscarp bank is visible beyond the ditch

It is also possible to see its prominent counterscarp bank in places, and strikingly monumental form as it navigates around Selattyn Hill.

‘Cairn’, west of the dyke, west of Selattyn Hill. Significantly, this survives just where the dyke makes a significant angle turn. North of here, it runs SSW-NNE to Morlas Brook. S of here, it runs NNW-SSE to Orseddwen.

The wider interaction of the monument with the landscape is also key here. As discussed for the line north of the Morlas Brook towards Bronygarth and Chirk, the dyke has restricted views west, but key visual interplay with prominent hilltops to the west. Near Selattyn Hill, this includes a prominent prehistoric burial mound west of the line of the dyke and a potential lookout place for anyone approaching or guarding the dyke.

The Wrekin as seen from Offa’s Dyke near Orseddwen

A further dimension is that, for large parts of its distance, the dyke enjoys striking views east over the Cheshire and Shropshire plains towards the Wreckin and Long Mynd, allowing ready communication over large tracts of ‘Mercian’ territory. Presumably beacons on the top of Selattyn and Baker’s Hills could readily communicate along the dyke and back from it.

Brian and Ben – the Scooby and Shaggy of Chester’s archaeology postgrad community – kindly joined me for the walk and for a celebratory KFC afterwards

Finally, the dyke runs towards Carreg-y-beg farm from either side at an angle, enhancing its visual command of land to the west. It is this location which Ray and Bapty speculate might have been an historic gateway through the monument. Indeed, this farm is the present-day crossroads of routes converging from both west and the east. Its significant change in direction at this point does indeed suggest it might have been a key node of controlling movement through the landscape along and across the dyke.

In summary, this walk reveals many of the key landscape and design elements discussed by Ray and Bapty in their recent book. The fact that its line is the present-day border at this location adds significance to these features, and how they matter for understanding landscapes past and present.

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