It does not announce itself to anyone walking the ground. There are no visible walls, no earthworks rising to knee height, no obvious indication that the land was once parcelled up and worked according to a deliberate plan. Yet from above, the evidence is legible: a series of linear cropmarks, the kind that form when buried banks or ditches affect the growth of grass and crops differently from the surrounding soil, running at right angles to each other across an area roughly 750 metres north to south and 550 metres east to west.

The field system came to light not through excavation but through the accidental archive of an infrastructure project. Aerial photographs taken on the 3rd of November 1984, as part of the Bórd Gáis Éireann Curraleigh to Limerick gas pipeline survey, captured a series of low banks crossing the site. The photographs were taken at a scale of 1 to 5000, detailed enough to show what centuries of ploughing and pasture management had obscured at ground level. The site does not appear on the Ordnance Survey Ireland six-inch maps, meaning it passed unrecorded through the principal historical mapping of the Irish countryside. Later satellite imagery, including Digital Globe orthoimages taken between 2011 and 2013 and Google Earth imagery, confirmed the cropmark pattern and allowed a clearer sense of the system's extent. The site is associated with a broader cluster of monuments in the area, recorded under the reference LI049-063002/008, though the field system itself was compiled into the record by Fiona Rooney and uploaded in September 2021.

This is not a site with a visitor path or an interpretive panel. The field system lies in rough pasture and is, for practical purposes, invisible from the ground. Its interest is largely the interest of method: what pipeline surveys and satellite imagery can recover that walking the landscape cannot. Anyone curious enough to look it up on Google Earth, searching around the Duntryleague area of south County Limerick, can trace the perpendicular cropmark lines themselves. The surrounding townland also sits within a part of Limerick with a notable density of prehistoric and early medieval monuments, so the field system, whatever its date, was not laid out in an empty landscape.