What it actually represents is something considerably older: a prehistoric embanked barrow, a type of funerary monument in which a burial, or the memory of one, was enclosed within a roughly circular bank of earth. This one is not alone. Another barrow lies roughly 150 metres to the south-west, and two more sit around 170 metres to the south-east, which suggests this corner of Cloghaderreen once held some significance in the landscape of the dead.

The monument was surveyed by the Archaeological Survey of Ireland in 2008, and the picture that emerged was of something considerably worn down by time and agricultural use. The surveyors recorded a roughly circular area measuring 19 metres north to south and 17 metres east to west, defined by the intermittent remains of a bank about 3.4 metres wide. The bank survives to a modest internal height of around 0.35 metres and an external height of 0.55 metres, and is legible only in sections, from the north-west around through the north, from the east around through the south-south-west, and at the west-south-west. Elsewhere it has been reduced to little more than a scarp, a low abrupt edge in the ground. An aerial photograph taken by the ASI in September 2002 still showed the circular earthwork clearly, partially covered in scrub, and the outline remained detectable in Google Earth imagery taken as recently as June 2018. The record was compiled by Alison McQueen and Vera Rahilly and uploaded in July 2020.

Visitors to this kind of site should calibrate their expectations accordingly. There is no dramatic mound, no kerb of stones, no obvious focal point. What you are reading is subtle ground-level evidence, the kind that rewards patience and a low raking light, which makes early morning or late afternoon visits in autumn or winter the most productive. The surviving bank is best visible from the north and north-west quadrants, where it retains a little more height. The surrounding pasture means access depends on the goodwill of the landowner, and the partial scrub cover noted in survey records may have changed. Given the density of funerary monuments in the immediate vicinity, the wider field system here is worth examining slowly rather than focusing solely on any single earthwork.