Somewhere beneath the whins and furze of the Kildare Golf Course, at the north-western edge of the Little Curragh, lie the traces of at least twelve ancient burial mounds that are now almost entirely invisible to anyone standing among them. Ring barrows are low circular earthen monuments, typically consisting of a central mound or flat area enclosed by a shallow ditch and a slight outer bank, and were used for burial during the Bronze Age and later periods. What makes this particular group quietly remarkable is not grandeur but near-total concealment: the individual monuments measure only around six to ten metres in diameter on average, with a surrounding ditch barely five to ten centimetres deep and an outer bank rising no more than ten centimetres above the surrounding ground. At that scale, even in a clear field, they would be easy to miss.

Aerial photography has done more to reveal this group than any ground-level survey. A 1970 photograph, referenced as CUCAP BDU 21, shows up to twelve small circular enclosures clustered to the south and south-east of a larger enclosure nearby. A second aerial image, possibly from the Geological Survey of Ireland though unattributed, shows the features with even greater clarity. By 1989, when surveyors visited in person, the monuments were already difficult to read on the ground because of tree stumps, furze, and disturbance from grazing sheep. Since then, the area has become still more overgrown with whin bushes, and the twelve designated monuments are no longer clearly visible at ground level. There is a further complication: some of the circular features may not be prehistoric burials at all, but lunging rings, small circular enclosures used historically for exercising horses on a long rein, which would be consistent with the Curragh's long association with equestrian activity.