Each stone measures roughly 1.2 metres by 0.9 metres, broad enough to stand on with confidence, and the crossing stretches for about 24 metres where the stream runs slow and shallow. The arc shape is what lifts this above a simple ford; it suggests considered placement rather than convenience, as though whoever laid these stones understood both the hydraulics of the stream and the rhythm of a person's stride.

Stepping stones of this kind were a practical solution to crossing watercourses in rural Ireland long before bridges became common infrastructure. A straight line of stones would offer the shortest path, but an arc can follow a shallower or more stable part of a streambed, distributing the crossing over ground that holds firm underfoot. The Coomeelan stream, at this particular point, is wide enough that a bridge would have required real material and labour investment, while the stones ask only that someone take the time to find and position the right flat surfaces. Who laid these, and when, is not recorded.