On the grounds of Kilballyowen House in County Limerick, an ancient ring barrow, a roughly circular earthen mound typically raised over a burial or as a territorial marker during the Bronze Age, survives not as a visible hump in the field but as a ghost in the grass. Under certain light and in dry seasons, the buried archaeology shows through the turf as a cropmark, the differential growth of grass revealing what lies beneath to anyone with a satellite view or an aerial photograph. It sits in improved pasture, about 75 metres north of the current access road to Kilballyowen House, and a second ring barrow lies immediately to its west.

The site was not recorded on Ordnance Survey Ireland historic maps, an omission that hints at how easily such features were overlooked during the great mapping surveys of the nineteenth century. What brought it to official attention was the work of Grogan, who in 1989 identified the feature as a circular-shaped cropmark in what he catalogued as 'Kilballyowen 2'. The location corresponds roughly to an earlier driveway leading to Kilballyowen House, suggesting the landscape around the estate has shifted considerably over time, with roads rerouted and the ground surface altered by generations of agricultural improvement. Orthoimages captured between 2005 and 2018, from Ordnance Survey Ireland, Digital Globe, and Google Earth, all show the area obscured by tree cover, which further complicates efforts to pin down the monument's precise position. As of the record compiled by Alison McQueen and Vera Rahilly in November 2020, the exact location could not be confirmed without access to Grogan's original thesis, which was not held in the associated paper file.

For anyone hoping to visit, the practical situation is complicated. The monument lies on private land within the grounds of Kilballyowen House, and the combination of improved pasture, tree cover, and the absence of any visible surface feature means there is nothing obvious to see from the road or even from within the field itself. The interest here is more archival than experiential. What the site illustrates is a broader truth about the Irish landscape: that the absence of something on a map, or the inability to see it on the ground, does not mean it was never there. The townland boundary with Knockainy lies roughly 690 metres to the east, and the wider area around Kilballyowen has clearly accumulated layers of occupation and activity that remain only partially legible.