The cartographers labelled it simply "Site of St Kevin's Road", a designation that raises more questions than it answers. By the time the surveyors were working in the nineteenth century, the road itself had already vanished to the point where only its former presence, not its surface, could be recorded.

The feature runs southwest from a standing cross at Glendalough, the monastic valley in the Wicklow Mountains most closely associated with Saint Kevin, the sixth-century hermit and founder whose reputation drew pilgrims to the site for centuries after his death. The road almost certainly formed part of a pilgrimage route connecting the various churches and monuments of the valley, a network of paths worn into the landscape by generations of devotional walkers rather than engineered in any formal sense. That the OS surveyors felt it worth marking, even as a ghost of itself, suggests it retained enough visibility or local memory in the early nineteenth century to be worth noting, even if nothing structural remained. The dashed line on the map is, in effect, a cartographic record of something already becoming folklore.