What survives at the surface is not a monument or a structure but a scatter of worked flint, the kind of material archaeologists call lithic debitage, essentially the waste chips and flakes left behind when prehistoric people knapped stone to make tools. The flint itself does not look dramatic. Scattered through ploughed soil, it resembles ordinary gravel until you notice the conchoidal fractures and deliberate edges that mark it as humanly worked.

The site came to light during a systematic field survey of seven fields in the Barnageeragh area in 1990. The survey recovered a large quantity of flint debitage alongside a low density of retouched pieces, meaning that while the raw-material waste was abundant, the finished or deliberately shaped tools were comparatively rare. Preliminary analysis of the collected material, published by Guinan in 1992, suggested that people were present here from the Mesolithic period, when Ireland was inhabited by small, mobile hunter-gatherer groups using flint intensively, through to the Bronze Age, a span covering roughly six thousand years of intermittent or continuous use. The field's steep drop to the north-east may partly explain the concentration: higher, well-drained ground above a slope would have been an attractive spot for camps or short-term working areas across many different periods.

The site is not marked or fenced, and there is nothing at the surface to signal its significance to a passing visitor. The Hanging Hill name offers a local landmark to ask about, though the flint scatter itself would require a trained eye and appropriate permissions to examine properly. Archaeological surface material of this kind is protected under Irish national monuments legislation, so nothing should be collected or disturbed. The most useful thing a visitor can do is simply look at the lay of the land, the steep north-eastern fall, the open aspect, and consider what drew people back to this same ground across so many millennia.