It is a togher, an ancient timber trackway laid across wet or marshy terrain to allow passage where the ground would otherwise swallow a traveller whole. This particular example is modest in its dimensions, just 2.4 metres wide and roughly 10 centimetres deep, but what it represents is a small act of considerable engineering: someone, at some point, felled ash trees, worked the timber into roundwood poles averaging about 6.5 centimetres in diameter, and laid them transversely across the bog to form a firm, if narrow, surface.

Toghers like this one are classified by their construction method, and a class 3 togher refers specifically to this kind of transverse roundwood arrangement, where lengths of timber are placed crosswise to the direction of travel, forming something not unlike a low, organic corduroy road. The ash roundwood here was worked rather than simply thrown down, suggesting a degree of deliberate preparation. The trackway runs on a northeast to southwest orientation, a bearing that likely reflects the practical logic of connecting two points across difficult ground rather than any ceremonial or symbolic purpose. Ash was a commonly used timber for such constructions across Ireland, valued for its flexibility and relative durability even in waterlogged conditions. The bog itself has preserved the structure in the way only anaerobic, acidic environments can, keeping organic material intact for potentially thousands of years when it would otherwise have long since rotted away.