Located 85 metres east of a local road and 175 metres north of a well, this rectangular enclosure first appeared on official maps in 1840, when Ordnance Survey Ireland documented it as part of their comprehensive mapping project. The site measures approximately 34 metres north to south and 28 metres east to west, enclosed by an earthen bank that runs along its eastern, southern, and western sides, with a notable gap at the northeast corner.

The monument’s intriguing history becomes clearer through cartographic evidence. By 1897, the Ordnance Survey’s more detailed 25-inch maps showed the site intersected at its northern end by a field boundary running east to west, suggesting the land had already been incorporated into the local agricultural landscape. In 1981, historian Barry included the site in his catalogue of possible moated sites in the region, a classification that hints at its potential medieval origins. Moated sites were typically built between the 13th and 14th centuries, often serving as defended farmsteads for Anglo-Norman settlers or prosperous Irish families.

Today, modern satellite imagery from Digital Globe and Google Earth reveals the monument’s outline still visible from above, its boundaries marked by a line of trees that have grown along the old earthwork. A farmyard building now stands immediately to the west of the site, showing how contemporary rural life continues to evolve around these ancient features. While its original purpose remains uncertain, the site at Cullane South stands as a tangible link to medieval Ireland, when such enclosed settlements dotted the landscape as symbols of agricultural prosperity and social status.