That doubled defensive arrangement, a rath with bivallate earthworks rather than the more common single bank, gives the site a quietly emphatic quality. The interior measures 22.1 metres in diameter, and at the north-east the two banks open in corresponding breaks, connected by a causeway that marks the original entrance point used by whoever lived here, perhaps a thousand or more years ago.

A rath is an early medieval ringfort, the most numerous monument type in the Irish landscape, typically built between roughly 500 and 1000 AD as a farmstead enclosure for a family of some local standing. The earthen bank, or banks in this case, defined both a working boundary and a social one, signalling status as much as providing security. The waterlogged fosse here is not unusual in low-lying Cavan terrain, where groundwater sits close to the surface, but it would have made the site considerably harder to approach uninvited. The causeway at the north-east entrance is a telling detail: it was deliberately constructed to allow controlled passage across that wet ditch, and the fact that it survives in alignment with the breaks in both banks suggests the overall form of the enclosure has changed relatively little since it was in use.