Ring-barrows are circular earthen mounds, typically surrounded by a ditch and outer bank, and are generally associated with Bronze Age burial practice, though their use varied across time and region. This one was, for a long stretch, effectively invisible, at least to those looking at maps rather than at the ground from the air.

The site came to light during the Bruff aerial photographic survey of 1986, when analysts identified a roughly circular cropmark in the fields at Kilduff. Cropmarks form when buried features, ditches, banks, or foundations, affect how vegetation grows above them, showing up as subtle differences in colour or density that are only legible from altitude. That 1986 survey image, catalogued as Bruff 159.3 (AP 4/3678), gave the first reliable indication that something lay beneath the pasture. Subsequent aerial imagery confirmed the finding: the monument appears as a faint oval-shaped cropmark on Ordnance Survey Ireland orthoimages taken between 2005 and 2012, on Digital Globe imagery from 2011 to 2015, and on a Google Earth image captured in November 2018. Crucially, it is one of a cluster of three ring-barrows in the immediate area, recorded together under the reference numbers LI024-252, 253, and 254, suggesting this was not an isolated burial but part of a broader, organised use of the landscape in prehistory. The site lies approximately 110 metres northwest of the townland boundary with Garrison. The record was compiled by Alison McQueen and Vera Rahilly and uploaded in October 2020.

Because the monument survives only as a cropmark, there is nothing visually dramatic waiting at ground level. The fields here are working agricultural land, crossed by drainage channels and watercourses, and the faint oval that shows up so clearly in aerial photographs is essentially unreadable to someone standing in the grass. The site is best appreciated through the aerial imagery now available via the National Monuments Service or Google Earth, where the November 2018 capture in particular shows the cropmark with reasonable clarity. Those with a particular interest in aerial archaeology will find the Bruff survey archive a useful companion resource for understanding the wider landscape context around Kilduff.