The lower of the two is a togher, a timber trackway of the kind built across wet or marshy ground in Ireland for thousands of years, allowing people and livestock to cross terrain that would otherwise have been impassable. What makes this particular example quietly arresting is not just its survival, but the fact that a later generation apparently needed to solve exactly the same problem in exactly the same place, and laid their own road almost precisely where their predecessors had laid theirs.

The trackway runs east to west and measures 1.35 metres wide and around 18 centimetres deep. It was constructed from worked hazel roundwood, the individual timbers averaging about 7 centimetres in diameter, laid both transversely and longitudinally to form a stable surface. Hazel was commonly used in togher construction because it grows quickly, splits cleanly, and produces long, workable rods and poles. The care taken in working the timber suggests this was not a casual crossing but a deliberate piece of engineering. Directly above it, sealed in the same bog, lay a second togher, a separate structure built at a later date, the two roads stacked in the peat like pages in a book.