The enclosure measures roughly 25 metres in diameter and is defined by a fosse, which is simply a dug ditch, often used in early medieval Ireland to demarcate a settlement, a farmstead, or occasionally a ritual site. It is not visible to anyone walking the land today; the tillage farming that covers it has long since smoothed the surface flat. What gives it away is the differential way crops grow over buried features, showing up as tonal variations when viewed from above.

The site came to light through satellite imagery, specifically a Google Earth image captured on 18 July 2021, and was identified and reported by Jean-Charles Caillère. Crop marks of this kind are typically most legible during dry summers, when vegetation over a buried ditch, having access to deeper and moister soil, stays greener longer than the surrounding crop, or conversely shows stress in different conditions. The July timing of the image fits that pattern well. Beyond the circular form and its dimensions, the record is sparse, and the enclosure has not been excavated, so its date and function remain open questions.