The Ordnance Survey, meticulous as it was, omitted it entirely from its historic editions. The monument only came to light in 1986, when an aerial photographic survey out of Bruff caught something unusual in the pasture, roughly 90 metres north of the hilltop: a roughly semi-circular form defined by a fosse, the term for a ditch or earthen trench used to demarcate or defend an enclosed space, curving from the south-west around to the south-east before being cut off by a modern field boundary running east to west.

What the 1986 Bruff survey identified as a semi-circular feature has since shown a different face depending on how and when it is observed. Orthophotos taken by Ordnance Survey Ireland between 2005 and 2012 revealed a raised rectangular area measuring approximately 30 metres north to south and 50 metres east to west, still defined by the fosse. A Google Earth image from September 2020 shows it again as a semi-circular cropmark, the fosse tracing its arc from south-west around to the north-east. That the enclosure reads differently across different seasons and imaging technologies is itself telling; cropmarks of this kind appear when buried features affect the growth of overlying vegetation, and their shifting appearance is a reminder of how much archaeology remains conditional on weather, crop type, and the angle of the light. Two further enclosures sit close by, one 65 metres to the west and another just 30 metres to the north-east, suggesting this part of the hillside was once considerably busier than a glance at the current pasture would suggest.

The site sits within an area annotated as the 'Fair Green' on the 1840 edition of the Ordnance Survey six-inch map, a designation that hints at the later social uses of the land even as it obscures what lay beneath. The enclosure is not signposted and sits in private farmland, so any visit would require both permission and care not to disturb the ground. The feature is most legible from the air or via satellite imagery rather than at ground level, where the fosse is subtle at best. Those with an interest in landscape archaeology may find it worth cross-referencing the OSi orthophotos and the Google Earth image against a walk of the field boundary to understand how the historic fair ground and the older enclosure relate to the present shape of the hill.