2 metres high and just under a quarter of a metre thick. It never made it onto the Ordnance Survey map, and the earthwork beside it has largely vanished into the ground. What survives is a quiet pairing of monuments, easy to miss and seldom visited, that together suggest this particular corner of Limerick once carried some significance that nobody now fully understands.

When the archaeologist O'Kelly recorded the site in 1942 and 1943, two features were still legible in the field. The more substantial was a small circular earthen platform, the kind sometimes associated with early medieval or prehistoric ceremonial use, surrounded by a fosse, which is simply a ditched enclosure cut around a raised area. The platform measured around 26 metres in overall diameter and rose to a maximum height of about 1.37 metres, with its surface sloping gently from east to west. Even then, part of the fosse had already been lost on the eastern side, cut through by the making of a drain and a fence. Alongside this earthwork, to its north, stood the limestone slab O'Kelly described plainly: triangular, of apparent antiquity, unremarkable in size but notable for surviving at all given that it had never been formally recorded on any map. His note that it "looks ancient" carries the slightly resigned precision of a fieldworker who knows he is looking at something real but cannot pin it down further.

Today the earthwork has effectively disappeared at ground level, though a faint cropmark, the ghostly outline left in grass or crops when buried features affect soil moisture, is barely visible on Digital Globe aerial photographs if you know what you are looking for. The standing stone itself remains the more tangible of the two features. The site sits in low, wet ground, so appropriate footwear matters more than the time of year, though dry spells in late summer, when cropmarks are most legible from above, are the best conditions for appreciating what aerial imagery can show. On the ground, the stone is the thing: small, triangular, limestone, unassuming, and quietly absent from the maps that were supposed to record everything.