Ringforts, known in Irish as raths, were typically enclosed farmsteads of the early medieval period, their earthen banks and ditches marking out a family's domestic and agricultural space rather than serving any serious military purpose. Most retain at least a hint of a causeway or gap in the bank that betrays the original way in. Here, that detail has been lost entirely.

The enclosure sits on a gentle south-west-facing slope and takes a subcircular form, measuring roughly 38 metres east to west and 33 metres north to south. It is defined by an earthen bank, between about three and four and a half metres wide, which still carries some bushes along its course. Along the northern arc, internal facing-stones survive, suggesting the bank was once given a more deliberate structural finish on that side. Elsewhere, particularly from the north-east round to the south, the bank has eroded down to little more than a low scarp. Beyond the bank runs an outer fosse, the term for the encircling ditch that would have added both drainage and a degree of definition to the perimeter; it is roughly five metres wide at the top and still drops to a depth of around 0.6 to 0.8 metres. What makes the situation in Kilmore particularly interesting is the density of such monuments in a small area. Two further raths lie close by: one approximately 160 metres to the north-west, another about 190 metres to the south-west. Three ringforts within 200 metres of one another points to a landscape that was once considerably more populated and organised than the quiet fields suggest today.