Known locally in the 19th century as 'Dermot and Grania's Bed', a reference to the legendary lovers from Irish mythology, the site consists of what appears to be a ruined circular stone enclosure, roughly 23 metres in diameter. When antiquarian Thomas Fagan documented it in the 1840s, he noted two prominent standing stones; one upright slab about 1.4 metres high and another smaller stone leaning against it, surrounded by various prostrate and partially buried stones within what looked like an ancient enclosure.

Archaeological excavations in 1976 revealed a complex history spanning thousands of years. The circular wall, built with a rubble core and faced with stone on both sides, contained a chamber filled with midden material at its southern edge. The excavator suggested that the two stones Fagan had observed, which still stand today near a gap in the northeastern wall, might have been sidestones of a small megalithic chamber, with evidence of sockets indicating where additional stones once stood to form the back and possibly a small forecourt area. The site yielded fascinating artefacts from at least two distinct periods: Western Neolithic pottery and a flint knife from the earlier phase, whilst the later occupation left behind spindle whorls, a bone needle, jewellery made from chlorite, and a corroded iron object, along with animal bones, shells, and a small quantity of cremated human remains.

Despite these investigations, the site's true nature remains tantalisingly unclear. Whether it served as a megalithic tomb with a forecourt, as suggested by the excavator, or had some other ritual or domestic purpose during its Neolithic phase is still debated. Today, substantially obscured by furze bushes, it resembles a cashel (a stone fort typical of later Irish history), though its origins clearly stretch back much further into prehistory, carrying echoes of the ancient communities who once gathered within its walls for purposes we can only imagine.