It measures just over twelve metres long and roughly thirty centimetres deep, which is modest by any standard, yet the precision of its construction speaks to considerable practical knowledge. This is a togher, the Irish term for a timber trackway laid across wet or marshy ground to allow passage where firm footing would otherwise be impossible.

The structure follows an east-west orientation and is built from worked roundwood, meaning the timbers were shaped rather than simply thrown down raw. The builders used a combination of transverse and longitudinal pieces, laid across and along the line of travel respectively, creating a stable interlocking surface. The timber itself is alder, birch, and oak, each piece ranging between six and eleven centimetres in diameter. This choice of materials is worth noting: alder in particular has long been favoured for wet-ground construction because it resists decay unusually well when kept submerged, which is precisely why so many toghers have survived at all. The peat bog acts as a preserving medium, cutting off the oxygen that would otherwise break organic material down over centuries.