What was once substantial enough to be mapped in detail, measured at roughly 42 metres across and marked on the Ordnance Survey's six-inch sheet of 1840, is now invisible to the naked eye at ground level. The only confirmation that something is still down there came from a Google Earth image taken in September 2018, when the right conditions of dry summer ground produced a circular cropmark, approximately 44 metres in diameter, faintly pressing through the grass.

The site sits within the former deer park of Cahir Guillamore demesne, about 90 metres from the townland boundary with Rockbarton Demesne, and forms part of a wider field system in the area. The 1897 Ordnance Survey 25-inch map annotates it as 'Cathair Gail', a name suggesting an early Irish enclosure or stone fort; a cathair, in this context, refers to a roughly circular stone-walled enclosure, typically associated with early medieval settlement. By 1896, the antiquarian Dowd was already describing it as part of an extensive settlement, quoting a view that the surrounding remains constituted "the remains of an ancient city of great extent." When the archaeologists Ó Ríordáin and Hunt visited and recorded the site in 1942, logging it as Fort D in their aerial survey, the monument was still upstanding, though even then Ó Ríordáin and Hunt were cautious, noting it appeared "an irregular enclosure on the ground" and that "one could not be certain that it is a fort." By the time aerial photographs were taken in later decades, the earthwork had been levelled entirely, absent from survey images and orthoimages taken between 2005 and 2013.

For anyone curious enough to seek it out, the enclosure lies within agricultural pasture, which means access is not straightforward; this is working farmland rather than a managed heritage site, and there is nothing to see at ground level in ordinary conditions. The cropmark visible in the 2018 Google Earth image is the clearest evidence of the monument's survival in any form, and even that required particular seasonal conditions to reveal itself. What the wider field system in the northwest portion of the townland might yet conceal is a question the landscape is answering only slowly, and mostly from the air.