What brought this particular earthwork to wider attention was not an excavation or a documentary discovery but a shadow, the kind cast at a low sun angle across dry summer grass, revealing a cropmark, the faint discolouration that appears in vegetation growing over buried or disturbed ground, tracing the outline of something deliberately built.

The site sits on a gentle east-facing slope in undulating pasture near the townland boundary with Fanningstown, with open views to the north, east, and south. It was first identified as an oval-shaped cropmark on aerial photographs taken during the Bruff Survey, and formally surveyed in 2000 by the Archaeological Survey of Ireland. That survey found a raised circular area roughly 18 metres in diameter, defined by a scarp, a low earthen edge or bank, approximately 4 metres wide and 0.2 metres high, with an external fosse, or ditch, running around most of the perimeter. The fosse, nearly 9 metres wide in total, survives clearly from the north-west around to the south-west, though it has been infilled along the western arc. A separate enclosure lies about 65 metres to the north-east, suggesting this corner of south County Limerick was once more densely organised than its present-day fields imply. The monument was compiled by Alison McQueen and Vera Rahilly, with the record uploaded in August 2020.

On the ground, the mound is described as dry and free of overgrowth, with a gently undulating interior, which means the earthworks are legible underfoot even if they read softly. The cropmark has remained visible in aerial and satellite imagery, including Google Earth images from June 2018, so the outlines can be checked before a visit. Because the monument is not marked on older maps, reaching it requires navigating by the townland boundary with Fanningstown and working 90 metres to the north-west. The feature rewards patient looking, particularly at times of year when grass growth is slow and the low relief of the scarp casts a clearer shadow across the slope.