Beneath the grass, traceable only from the air, lies a fragmented pattern of rectilinear cropmarks, the ghost of a former field system that has quietly persisted in the soil without ever making it onto the cartographic record.

The site sits in flood-prone ground at Ballynanty, roughly 60 metres north of a watercourse that forms the townland boundary with Camas North. It was first identified not through archaeological survey in the conventional sense, but through an aerial photograph, reference BGE 1:5000 No. 48, taken on 3 November 1984 as part of work connected with a Bord Gáis pipeline project in the region. Cropmarks are the faint differential patterns, visible from altitude, that form when buried features such as ditches, walls, or soil boundaries affect how vegetation grows above them. Dry summers tend to sharpen them, waterlogged conditions can obscure them, and they are frequently the only surviving evidence of landscapes that have otherwise vanished entirely. The sub-rectangular field in which these marks appear measures approximately 420 metres on its northwest to southeast axis and around 100 metres across, and some of the rectilinear marks run perpendicular to one another, suggesting the organised layout typical of a managed agricultural system. The marks have since been confirmed visible on Ordnance Survey Ireland orthophotos taken between 2005 and 2012, and on a Google Earth image dated 20 September 2020, compiled into the record by Martin Fitzpatrick in March 2021.

There is nothing to see at ground level, which is precisely what makes this kind of site worth understanding. The townland of Ballynanty lies in the broader Limerick lowlands, and the pasture here is the sort of ground that floods seasonally, which may partly explain why the underlying features have never been disturbed or built over. Anyone curious enough to visit should manage expectations accordingly; the experience is less about what is visible on the surface and more about knowing what the soil conceals. The most productive approach is to compare the location against the publicly available Google Earth imagery, where the cropmark pattern, faint but legible, gives a clearer sense of the scale and organisation of whatever once divided this ground.