At just thirty-seven centimetres across and six centimetres deep, this togher, the Irish term for a timber trackway laid across wet or marshy ground, is one of the more modest examples of a tradition of bog-road building that stretches back thousands of years in Ireland. What makes it quietly remarkable is not its scale but its method: a loose arrangement of hazel brushwood, each stem averaging around three centimetres in diameter, placed to create a passable surface across ground that would otherwise have been impassable.

The trackway runs east to west through the townland of Derrindiff, and its construction from hazel brushwood places it in a recognisable category of Irish wetland engineering. Togher construction ranged from elaborate oak plank roads to rough bundles of branch and scrub, and this falls toward the simpler end of that spectrum, classified as a class 3 togher. Hazel was a practical and readily available material, coppiced easily and flexible enough to be laid in dense overlapping layers. The data behind this record was gathered by the Irish Archaeological Wetland Unit, based at University College Dublin, a project that systematically documented bog trackways across the Irish midlands before many were lost to drainage and peat extraction.