At Corlea, a stretch of prehistoric trackway was revealed in precisely this way, exposed along both sides of a drain to a length of twenty-eight metres and a thickness of just under thirty centimetres. It is a modest set of measurements for something that was once someone's practical solution to crossing a landscape that would otherwise swallow a person whole.

The structure belongs to a category known as a togher, the Irish term for a bog road or trackway, typically built from timber laid across the soft, waterlogged ground of a raised bog to allow movement through terrain that would otherwise be impassable. This particular example is classified as a class 2 togher, meaning it was constructed from a combination of small and large brushwood along with roundwood, the whole assembly forming a platform rather than a simple line of planks. The use of brushwood and roundwood places it in a long tradition of practical bog engineering found across Ireland, where timber was the only reliable building material available and the bog itself acted as a preservative, holding organic material in a near-airless, acidic environment for centuries or even millennia. The Corlea area is already well known for its bogland archaeology, most famously for a large Iron Age oak trackway dated to 148 BC that now has its own dedicated interpretive centre nearby, so this secondary discovery fits into a broader pattern of repeated human activity across these wetlands.