The only firm evidence for it is a hachured, horseshoe-shaped marking on an Ordnance Survey six-inch map surveyed in 1944, those small radiating lines used by cartographers to indicate an embankment or raised feature. Visit the pasture today and there is nothing to see; no visible surface trace survives above ground.

Horseshoe or curved earthworks of this kind can serve many purposes across the archaeological record, from enclosure boundaries to the remains of ringforts, the latter being the ubiquitous circular farmstead enclosures that were built across Ireland from the early medieval period onwards. Without excavation or further survey it is impossible to say with any confidence what this particular feature was. What the 1944 map records suggests something was once legible in the landscape at this spot on the ridge, with the Ilen river lying to the south. Whether ploughing, pasture management, or simple time erased it, the earthwork has since been absorbed back into the hillside, leaving the old map as its only monument.