Forty-four toghers, the Irish term for a timber trackway laid across boggy or marshy ground, were identified in the Cooleeny townland alone during field survey work documented by Gowen in 1999. That concentration in a single townland is quietly remarkable, suggesting this was not an incidental crossing point but a landscape people moved through repeatedly, deliberately, over a long period.

The toghers vary considerably in their construction. Most combined brushwood, the smaller branches and woody stems, with roundwood, the more substantial stripped trunks or poles, though some used only one material or the other. One unusual example incorporated gravel alongside brushwood, a more elaborate approach that hints at specific engineering requirements at that spot. Where wood species could be identified across seventeen of the trackways, the range was wide: alder, ash, birch, blackthorn, hazel, mountain ash, and willow. This variety likely reflects practical opportunism, builders using whatever timber grew close to hand in the surrounding landscape rather than selecting a preferred material. Two of the toghers have been directly dated by radiocarbon analysis, both falling within the Iron Age. The calibrated date ranges, 388 to 207 BC and 372 to 192 BC respectively, place their construction somewhere in the middle centuries before the common era, during a period when Irish communities were building and maintaining such structures across many midland and western bogs.