This is what archaeologists classify as a class 3 togher, one of the simplest and most widespread forms of bog road found across Ireland. A togher, from the Irish tóchar, is essentially a constructed path through wetland, and the class 3 variety relies on bundled or loosely arranged brushwood rather than the heavy oak planks associated with the more elaborate examples. The remains at Corlea run on a northeast to southwest orientation, a detail that hints at a deliberate route between two points, though what those points were, and who travelled between them, remains unrecorded.

Corlea is already known to those with an interest in ancient Irish wetland archaeology, primarily because of the remarkable Iron Age road discovered nearby, a massive plank trackway dated to 148 BC and now partially preserved in a dedicated visitor centre. That high-profile neighbour makes the brushwood togher easy to overlook, yet it belongs to a broader pattern of movement and activity across these boglands that spans thousands of years. People were crossing this landscape long before and long after the great timber roads were laid, using whatever materials came to hand, and the modest scatter of brushwood preserved in the peat is as genuine a trace of that activity as any grander construction. The work of documenting such sites across Irish wetlands was carried out in the field by researchers associated with the Irish Archaeological Wetland Unit at University College Dublin, an institution responsible for identifying and recording hundreds of these fragile, waterlogged features before they could be lost to drainage or peat cutting.