It is a ditch barrow, a prehistoric funerary monument typically consisting of a low central mound enclosed by a surrounding ditch, and for most of its existence this one went entirely unrecorded. It shares the landscape with two ring-barrows, close neighbours lying forty metres to the north-east and forty metres to the east respectively, suggesting that this corner of Kilduff was once a deliberate place of burial or commemoration, even if the ground now gives almost nothing away.

The monument came to light not through excavation or local tradition but through aerial photography. The Bruff aerial photographic survey of 1986, catalogued as Bruff 82 and image reference AP 4/3678, picked out the small circular form from above, where it registered as a faint cropmark or soil variation invisible at ground level. Aerial survey of this kind works because buried features, including ditches and banks, affect how overlying vegetation grows and dries, making ancient outlines legible from altitude that are otherwise imperceptible on foot. The site was further confirmed when the outline of the possible ditch barrow appeared on a Digital Globe orthophoto taken between 2011 and 2013, and again on a Google Earth image captured on 25 March 2017. The record was compiled by Fiona Rooney and uploaded to the national monuments database in July 2020.

The barrow sits approximately forty metres west of a stream and ninety metres north of the townland boundary with Garrison, coordinates that are precise enough to locate it on a map but that translate, on the ground, to an unmarked stretch of ordinary farmland. There is no public monument, no signage, and no visible earthwork to speak of. Visitors with an interest in the prehistoric landscape of this part of Limerick would do better to approach it as part of the broader cluster of monuments in the area, cross-referencing the national monuments database record with satellite imagery before setting out. The site sits on private agricultural land, so access would require the landowner's permission. What makes it worth knowing about is less any spectacle it offers than the fact that it exists at all, a small funerary enclosure that survived millennia of farming, escaped cartographic notice entirely, and was only recovered from obscurity when someone looked down from the right height at the right moment.