It sits in rough grazing ground between ridges of exposed rock, a low, semi-circular mound of burnt and fire-cracked material, roughly 9.7 metres north to south and only 0.4 metres high. Easy to walk past, easy to dismiss as a natural feature of the lumpy West Cork landscape. At its centre, however, is something more deliberate: a small stone-lined trough, just under a metre across and 18 centimetres deep, surrounded by a roughly pentagonal arrangement of twelve upright stones, the tallest standing 1.56 metres high.

A fulacht fia is, broadly speaking, a prehistoric cooking site, though the term covers a range of possible uses including brewing, hide-working, and bathing. The method was consistent: stones were heated in a fire, then dropped into a water-filled trough to bring the water to a boil. Over time, the shattered, heat-fractured stones accumulated around the trough, forming the characteristic horseshoe or crescent-shaped mound. The Baltimore example follows this pattern closely, its mound composed of exactly that kind of spent, burnt material. What makes it slightly unusual is the upright stone setting around the trough, an arrangement not universally present at such sites, which hints at a more structured use of the space than simple open-air cooking might demand. To the east of the mound, a pile of field clearance stones has accumulated over the years, the ordinary agricultural past layered on top of the prehistoric one, while a field fence runs close to the western edge.