It is a togher, the Irish term for a trackway laid across soft or waterlogged terrain, and this particular example is a modest but precise piece of early engineering: just sixty centimetres wide and roughly twelve centimetres deep, oriented east to west, and constructed from longitudinal brushwood reinforced at intervals with roundwood of birch and hazel.

That combination of materials is quietly telling. Brushwood toghers, classified as class 3 among the various types identified in Irish wetland archaeology, represent one of the simpler constructional traditions, relying on the bundled stems and branches of readily available scrub rather than the hewn planks or heavy split timbers used in more elaborate examples. Birch and hazel were the obvious choices in an Irish wetland landscape, both fast-growing and flexible, both common at the bog margins where the togher builder would have worked. The east-west orientation suggests a purposeful crossing rather than a wandering path, linking two points with some degree of intention, though what those points were and who used this route remains unknown. Toghers like this one were sometimes associated with seasonal movement of livestock, with access to fishing or fowling grounds, or simply with the practical need to cross ground that became impassable in wet months. The bog itself, by sealing the wood in anaerobic conditions, did what no other environment could: it stopped the decay that would have consumed the structure within a generation under ordinary circumstances.