This is a class 3 togher, a category of Irish bog road constructed not from heavy timber planks but from brushwood laid in an irregular arrangement, oriented roughly northeast to southwest across the wetland. Where the more celebrated bog roads were engineered feats of carpentry, this one speaks to a different kind of passage: improvised, functional, built from whatever the surrounding scrub could offer.

Togher is the Irish word for a causeway or trackway laid across boggy ground, and examples range considerably in their ambition and construction. Class 3 toglhers like this one represent the rougher end of that spectrum, their brushwood foundations pressed into soft peat to provide just enough purchase for a person or animal crossing ground that would otherwise be impassable. The Corlea area is already known for one of Ireland's most significant prehistoric roads, a massive Iron Age plank road dating to around 148 BC that was excavated in the 1980s, so the presence of additional trackway remains in the same landscape is not surprising. Bogland preserves what drier ground destroys, and decades of work by the Irish Archaeological Wetland Unit at University College Dublin identified numerous such features across the Irish midlands, this brushwood arrangement among them.