Twenty-nine of them were recorded in Killoran townland alone during field survey work, each one a togher, the Irish term for a trackway built across bogland by laying wood directly onto the soft ground. The sheer number concentrated in a single area suggests this was no isolated crossing point but something more organised, a landscape threaded with routes that mattered to the people who built them.

A field survey carried out by Gowen in 1999 documented the construction methods in detail. Fifteen of the toghers were made entirely from brushwood, while the rest combined brushwood with roundwood for added structure. Three examples showed evidence of pegs or stakes driven into the ground, presumably to hold the material in place against the shifting bog. Wood species were identified across thirteen of the trackways, with ash and hazel predominating, though alder, birch, elm, holly, and mountain ash also appeared in the record. The mix of species reflects what was locally available and manageable, and the use of hazel in particular is a recurring feature of early medieval woodworking across Ireland. One togher yielded a radiocarbon date placing its construction somewhere between AD 1024 and 1162, squarely within the early medieval period, though the remaining examples have not been individually dated and may span a wider range. The bog itself has acted as a near-perfect preservative, keeping the waterlogged timbers intact in conditions that would have destroyed them long ago in open ground.