It does not appear on any Ordnance Survey Ireland historic maps. The only reason it is known at all is that an aircraft passed over in 1986 and a camera caught it from the air, the low angle of light throwing the slight rise and curve of the ground into just enough relief to be noticed.

The monument was identified during the Bruff aerial photographic survey of 1986, catalogued as image AP 4/3607 in that survey's sequence. From the air it read as a small penannular earthwork, meaning a ring-shaped form with a gap or break in its circuit, a shape associated in Irish archaeology with a range of monument types including barrows, which are burial mounds of varying date and construction. Whether this particular example was raised over a burial, or served some other purpose, the notes do not say. A possible ditch-barrow, a separate monument type defined by an encircling ditch rather than a mound, has been recorded roughly 170 metres to the south-west, suggesting this corner of the Camoge floodplain may have held some significance in prehistory or the early medieval period. The site sits about 270 metres east of the river itself and just 80 metres from the townland boundary with Herbertstown (Powell), placing it on the quiet administrative edge between two named territories. Subsequent satellite and ortho imagery, including captures from 2005 to 2012, 2011 to 2013, and a Google Earth image from March 2017, confirm the earthwork remains visible as a roughly circular form on the ground.

Because the monument lies in reclaimed agricultural pasture on a river floodplain, access would depend on landowner permission, and the ground is likely to be soft or waterlogged in wetter months. The earthwork itself is subtle; at ten metres in diameter it would be easy to walk past without recognising it for what it is. The most useful approach for anyone trying to locate it precisely would be through georeferenced aerial or satellite imagery rather than any ground-level landmark. The Bruff survey image labelled 179 remains the clearest record of the monument's form.