It has no official marker, no interpretive sign, and to stand beside it would tell you very little. The only reason anyone knows it exists at all is because a pipeline survey aircraft flew over this particular stretch of countryside on a November day in 1984 and captured something faint and geometric in its photographs.

The site sits in the townland of Raheennamadra, roughly 230 metres northwest of the boundary with Mitchelstowndown East, with Garryspillane House lying about 325 metres to the northeast. A separate enclosure, an enclosed area typically defined by a bank or ditch and associated with early settlement or land management, sits around 130 metres to the west. The earthwork itself was first flagged as a potential archaeological site on aerial photographs taken by Bórd Gáis Éireann during the survey for the Curraleigh West to Limerick gas pipeline, catalogued as Site 251 on photograph 2578. What the images showed was a faint outline lying immediately west of a north-south field boundary that post-dates 1700, meaning the earthwork, whatever its origin, predates the field system that now surrounds it. Decades later, a Digital Globe orthoimage taken between 2011 and 2013 still showed a faint outline, and Google Earth orthoimages have since confirmed a cropmark, the kind of subtle discolouration in vegetation or soil that reveals buried or levelled features beneath the surface, consistent with a flattened earthwork. The record was compiled by Fiona Rooney and uploaded to the national database in September 2021.

There is little to see on the ground, and that is rather the point. The site is on private agricultural land and there is no public access route marked. For anyone with a serious interest, the Google Earth cropmark images referenced in the record offer the clearest view available, and the National Monuments Service record provides the mapped coordinates. The surrounding landscape, gently rolling and quietly farmed, gives no obvious clue that something lies beneath. The earthwork is most legible from above, in dry summers when cropmarks are sharpest, and even then only if you know exactly where to look.