These are toghers, a term for the timber trackways that medieval Irish communities laid across bogland to make otherwise impassable terrain navigable. The twenty-nine examples identified in Killoran townland represent a remarkable concentration, each one a solution to the same practical problem: how to cross a landscape that swallowed livestock, carts, and people whole.

A field survey carried out in 1999 recorded the full spread of these trackways, revealing considerable variety in how they were built. Fifteen relied entirely on brushwood, the simplest approach, using bundled branches pressed into the bog surface. The rest combined brushwood with roundwood, the heavier round-section timber adding structure and longevity. Three of the toghers showed evidence of pegs or stakes, suggesting their builders took care to fix the material in place against the bog's tendency to shift and absorb. Wood identification carried out on thirteen of the toghers found alder, ash, birch, elm, hazel, holly, and mountain ash all present, with ash and hazel predominating. These were not exotic imports but the trees of the local landscape, cut and laid with what appears to have been a working knowledge of which timbers held up best in wet conditions. One togher was directly dated, its wood sample returning a date range of AD 1024 to 1162, placing at least part of this network firmly in the early medieval period, a time when Ireland's bogs were being actively managed and crossed rather than simply avoided.