The ground itself sits lower than the surrounding land, hemmed in on one side by the stream and on the other by a natural scarp, giving the interior a slightly sunken, enclosed quality. Its irregular oval shape extends roughly 62 metres north to south and 25 metres east to west, but what draws the attention are the features inside: two grass-covered mounds of stones, and a line of low upright stones, none taller than about 90 centimetres, arranged in a rough zigzag roughly four metres long. Nobody has been able to say with certainty what these uprights represent.

About 50 metres to the northwest of the enclosure, four more small uprights, shorter still at around 45 centimetres, stand apart from the main burial ground. Local knowledge suggests these may be grave-markers, and digging around them revealed what appeared to be empty graves. Whether those graves were always empty, whether the burials were removed at some point, or whether what was found represents unfinished or symbolic interments, remains unclear. The site was recorded and described by J. Cuppage in the 1986 Dingle Peninsula archaeological survey of the Corca Dhuibhne area, a study that catalogued a remarkable density of early monuments across this western promontory of Kerry, where the archaeology is unusually well preserved and unusually varied. Killeenagh, as a place-name, almost certainly derives from the Irish for a small church or ecclesiastical enclosure, suggesting a religious or early Christian context for the burial ground, though no structural remains of any such building have been recorded here.