No cartographer working from ground level had ever noted it, and it appears on none of the historic Ordnance Survey Ireland maps. It took a view from the sky to bring it back into the record.

The site was identified during the Bruff aerial photographic survey of 1986, catalogued as Bruff 127 (AP 4/3616), when the characteristic circular cropmark became legible from the air. The monument sits in wet pasture in the townland of Clynabroga, approximately twelve metres east of the boundary with the neighbouring townland of Knockderk, in County Limerick. Its defining feature is a fosse, the encircling ditch that gives ring-barrows their name, tracing a circuit roughly twelve metres in diameter. Two further possible barrows lie close by, one approximately thirty-five metres to the north and another around thirty metres to the north-northeast, raising the possibility that this corner of the townland once served as a focus for funerary activity, though none of the three has been excavated. The record was compiled by Martin Fitzpatrick and uploaded in April 2021, drawing on orthophotographic evidence from the Ordnance Survey Ireland series taken between 2005 and 2012, as well as a Google Earth image dated September 2020.

Because the monument is visible primarily as a cropmark or soilmark rather than as any obvious upstanding earthwork, there is little to see at ground level, particularly in a wet field. The fosse does appear on aerial and satellite imagery, and comparing the Google Earth orthoimage with the 1986 Bruff survey photograph gives a clearer sense of the monument's shape and extent than any visit to the field itself is likely to provide. The wet ground conditions that help define the circular mark from the air also make the surrounding pasture difficult to traverse. Anyone curious about the wider landscape context might note the proximity of the townland boundary with Knockderk, which runs just a short distance to the west, and consider that such boundaries sometimes preserve much older territorial or ritual divisions in the land.