Situated on private land on a ridgeline overlooking Rathcormac is a large rath from which the village takes its name. Local folklore links this ringfort (ráth) to Cormac, a descendent of the legendary lovers Diarmuid and Gráinne who are associated in story with Benbulben and its wild boar.

One of the most common archaeological monuments found in Ireland, with approximately 45,000 examples identified, ringforts served as protected enclosures around farmsteads. Though the date of this example is not recorded, ringforts were in popular use especially during the early medieval period (circa 500-1100CE). (Note: The rath is on private land and not accessible to the public).