What emerged from that survey, and from the test trenching that followed, was a bi-vallate ring ditch, meaning a monument defined by two concentric ditches rather than one, roughly fifteen metres in diameter. Ring ditches of this kind are generally understood to be the eroded remains of prehistoric funerary or ceremonial monuments, often barrows whose central mounds have long since been ploughed or weathered away.

The excavation, conducted by Muireann Ní Cheallacháin of IAC Archaeology in 2021, opened trenches that cut across both ditches. The outer ditch measured 0.85 metres wide and 0.26 metres deep, its fills made up of layered sandy silts. The inner ditch was narrower and shallower, between 0.26 and 0.44 metres wide and no more than 0.16 metres deep, and it carried something more suggestive: the northern arm of that inner ditch contained dark grey-black sandy silt with charcoal, a material signature that often accompanies burning activity associated with prehistoric burial practice. No burnt bone was recovered from the investigative slots, so the nature of any original deposit remains unclear. Cutting across both ditches, and truncating their upper fills, were multiple parallel agricultural furrows running on a northwest to southeast alignment, the ordinary marks of later farming activity that had been slowly compressing whatever remained of the monument beneath them.