Though invisible to the naked eye at ground level, this ancient earthwork reveals itself through modern technology; aerial and Lidar imagery clearly show a levelled circular feature measuring 35 to 38 metres in diameter. The site occupies a patch of low-lying terrain, with a northeast to southwest ridge rising steeply just 30 metres to the south.

Visitors to the field might initially miss the enclosure’s presence entirely, as it was never recorded on any edition of the Ordnance Survey 6-inch maps. However, careful observation reveals subtle clues: a gentle rise in the ground where rushes refuse to grow, grass that appears slightly more vibrant, and soil that feels notably drier underfoot compared to the surrounding marshy pasture. The eastern edge is marked by a modest raised grassy strip, roughly 2 metres wide and 12 metres long, running from north-northwest to south-southeast. A field ditch, measuring 2 metres wide and nearly a metre deep, cuts across the northern edge of the site on a northeast to southwest axis, likely damaging the original enclosure’s boundary.

The site came to official attention when Jean-Charles Caillère notified the National Monuments Service of its existence. Archaeological compiler Jane O’Shaughnessy documented the enclosure in February 2023, noting how modern drainage ditches crisscross the damp pastureland where this ancient feature sits quietly, its full circular outline impossible to trace with confidence from the ground but unmistakably present when viewed from above.