The lower of the two is a togher, the term used for a timber trackway laid across wet or marshy ground, a form of infrastructure that Irish communities were building long before the Romans reached Britain. This particular example sits 0.45 metres beneath a second togher, a detail that speaks quietly to generations of people crossing the same difficult ground, repeatedly, over time.

The trackway is 1.87 metres wide and 0.28 metres deep, constructed from a combination of transverse and longitudinal roundwood, with occasional brushwood woven through. The roundwood pieces average around seven centimetres in diameter, the brushwood slightly less. Most of the timber is birch, and the wood shows clear signs of having been worked before it was laid down, meaning these were not simply branches thrown across a wet patch but deliberately shaped and placed components of an engineered crossing. The Irish Archaeological Wetland Unit, which carried out systematic survey work across Irish boglands, recorded this structure as part of a broader effort to document what is, in global terms, an extraordinarily well-preserved archaeological landscape. Bogland's waterlogged, acidic conditions inhibit the bacteria that would otherwise break down organic material, which is why timber trackways that might be thousands of years old can survive in detail that would be unthinkable in drier soils.