A ringfort, sometimes called a rath, is a circular enclosure defined by earthen banks and ditches, typically used as a farmstead during the early medieval period in Ireland. What makes this particular example quietly troubling is not its age but its fate: a monument that survived well enough to be carefully measured and recorded is now gone, replaced by suburban housing that gives no indication of what lies beneath.

When an Office of Public Works inspector visited the site in 1957, the ringfort was still largely intact. The circular raised area had an internal diameter of roughly 41 metres, defined by an external fosse, which is a ditch cut to contain or defend an enclosure, measuring about 4.5 metres wide and 1.5 metres deep on the interior side. The site had been documented even earlier: the Ordnance Survey's six-inch map of 1840 marks it as an embanked fort, and the more detailed 25-inch edition of 1897 records an enclosure measuring approximately 37.5 metres north to south and 42.5 metres east to west, surrounded by its fosse. The rath sat on flat pasture on the outskirts of Croom, roughly 390 metres east of the townland boundary with Carrigeen, and was not isolated in the landscape; a ditch-barrow lay only 30 metres to the north-east, and another ringfort sat some 125 metres to the north.

By the time aerial orthoimages were captured between 2005 and 2013, two domestic houses had been constructed directly on the site of the monument. Later Google Earth imagery from 2009 and 2018 confirms the same picture. There is nothing for a visitor to see on Church Road today, no earthwork, no signage, no visible trace of the enclosure in the surrounding ground. The record of this site now exists primarily in the OPW plan and section drawings, in the historic Ordnance Survey maps, and in the national monuments database entry compiled by Edmond O'Donovan and uploaded in September 2020. Its interest lies less in what can be seen and more in what the documentary sequence reveals about the rate at which archaeological monuments can disappear within a single lifetime.