What appears on aerial imagery as a semicircular earthwork, roughly 35 metres east to west and 27 metres north to south, may not be an ancient enclosure at all. The earliest Ordnance Survey mapping, the six-inch edition of 1840, records the feature as a rectangular, tree-planted enclosure of no particular antiquity, suggesting it could simply be a post-1700 plantation of trees whose root systems and ground disturbance have left a lasting impression on the soil. By the time the more detailed 25-inch OS map was produced in 1897, the feature had disappeared from the record entirely, the area by then divided by a field boundary running roughly north to south.

The enclosure sits on a north-facing slope in pasture at Linfield, 37 metres northwest of the townland boundary with Bunavie. It was the Bruff aerial photographic survey of 1986 that brought the site back to attention, identifying a possible semicircular earthwork from the air. Subsequent Digital Globe orthophotos taken between 2011 and 2013, and a Google Earth image from November 2018, confirm the earthwork is visible on the eastern side of the field boundary. Critically, there is no visible trace on the western side, which complicates any straightforward reading of the feature as a conventional enclosure. What survives is, in effect, half a shape, bisected by a later agricultural boundary and leaving the original form open to interpretation. The site was compiled by Alison McQueen and Vera Rahilly and uploaded to the record in July 2020.

The location places this ambiguous earthwork in notably dense company. A church and burial ground lie around 130 metres to the north, and a holy well, one of those small freshwater springs that were traditionally associated with local saints and curative ritual, sits approximately 160 metres to the north-northwest. Whether that proximity reflects genuine early medieval clustering of activity in this part of Limerick, or simply the ordinary overlap of landscape features across a well-settled countryside, is not something the current record can resolve. Visitors approaching the area will find the earthwork most legible from above, as ground-level traces in pasture can be subtle; the field boundary that now cuts across the feature is itself a useful reference point for locating where the visible arc of earthwork begins.