It does not exist as a mound or a hollow or any visible disturbance to the ground surface. It is visible only from the air, and only under the right conditions, when a buried ditch causes the crops growing above it to behave differently from those around it, producing what archaeologists call a positive cropmark. The ditch itself is approximately two metres wide, forming a near-perfect ring with no detectable entrance gap, meaning there is no break in the circuit where a person or pathway might have passed through.

A ring-ditch of this kind is generally understood to be the surviving trace of a prehistoric funerary or ceremonial monument, most likely the outer ditch of a round barrow or similar earthwork that has long since been ploughed flat. The site lies on an alluvial terrace, low-lying ground built up by river deposits, about 170 metres south of the Ward River. The land here was formerly associated with Irishtown House, a now-demolished residence that stood roughly 190 metres to the south-southwest. A second ring-ditch is recorded approximately 267 metres to the north-east, suggesting this stretch of river terrace may have held some significance over a long period. The wider landscape has been considerably altered; Ordnance Survey maps show that field boundaries across the area have been extensively levelled. The site was first reported by Paul Steen and compiled by Tom Condit for the record uploaded in April 2021.

There is nothing to see at ground level, and the field is working agricultural land, so there is no question of walking out to a monument. The best way to appreciate the site is through the Google Earth coverage dated 7 May 2017, which the record specifically identifies as the clearest available view of the cropmark. In that imagery the circular feature reads with unusual clarity. The fragments of other linear features and irregular marks visible in the same field suggest further buried archaeology in the vicinity, though their nature has not been determined.