Thousands survive across the country, often dismissed as lumps in a pasture, but this one at Ballyregan carries a small puzzle: the 1897 Ordnance Survey 25-inch map records it as a raised, sub-rectangular area measuring roughly 52 metres north to south and 45 metres east to west, with what appears to be an entrance gap at the south-east. By the time archaeologists from the Archaeological Survey of Ireland visited in 2000, what they found and recorded was considerably reduced, a roughly circular area just 31 metres in diameter, defined by a low scarp roughly 7 metres wide and only 0.3 metres high. Whether the difference reflects the natural erosion of over a century of farming, a difference in survey method, or simply the ambiguity of reading a monument that was already much degraded, is not entirely clear from the record.

A rath, to use the Irish term that gives so many townland names their prefix, was typically a circular or near-circular earthwork enclosing a family's dwelling and outbuildings, defended by an earthen bank and ditch. This example sits in level pasture with moderate views across the surrounding countryside, and a separate enclosure sits approximately 30 metres to the south, suggesting the area may once have supported more than one such structure in proximity. The survey compiled by Martin Fitzpatrick and uploaded in July 2020 notes that a field boundary running north to south now cuts across the monument at its north-west and south-west, further complicating its outline. The western side of that field boundary has become densely overgrown, which obscures that portion of the site further.

The interior of the rath is undulating and slopes gently to the east. For anyone trying to locate it on the ground, the monument's outline remains visible on satellite imagery, including a Google Earth image taken in June 2018, which can help orient a visit before setting out. Access would depend on the goodwill of the landowner, as is typical for monuments of this kind in agricultural use. The western overgrowth and the intersecting field boundary make the north-western and south-western edges difficult to read in person, so the cleaner impression of the circuit is likely to be found on the eastern and southern sides, where the scarp, though shallow, retains something of its original form.