It does not appear on any modern map as a road. It shows up instead as a slight hollow in the ground, flanked here and there by low earthen banks, and it was only noticed at all because an aircraft happened to pass overhead at the right angle in the right light. Aerial photography of this kind, particularly in dry summers when crop marks and soil differences become legible from above, has revealed countless such features across Ireland that ground-level inspection would simply miss.

The trackway came to attention in July 1969, when aerial reconnaissance recorded under the reference CUCAP AYQ 70 picked out its line in the large field lying to the north of a graveyard and associated church at Kilkerrin. Starting as a single road at its southern end, it divides roughly 50 metres north of the graveyard. The eastern branch runs due north, crosses a partially quarried hillock, and ends after about 120 metres near a modern farmhouse. The western branch takes a roughly north-north-west course and can be traced for around 150 metres to the edge of the pasture field, where an old earthen boundary visible on the third edition of the Ordnance Survey six-inch map, published in 1931, may continue its line for a further 75 metres. The association with the church and graveyard suggests the road served some devotional or communal function, perhaps carrying people to Sunday Mass or to bury their dead, though the record does not say so explicitly. What it does suggest is that a route once considered important enough to maintain has been absorbed so thoroughly into the landscape that only its shadow remains, legible only from the air and only on the right kind of day.