It is a togher, the Irish term for a wooden trackway laid across wet or marshy ground, and this particular example belongs to what archaeologists classify as a class 3 construction, a relatively simple form typically made from split or round timber laid transversely across the bog surface to allow passage where the ground would otherwise be impassable.

The Annaghbeg togher was recorded during a field survey in 1988, running on a north-east to south-west orientation. The reference is brief but it places the site within the broader work of Barry Raftery, whose 1990 publication on Irish trackways drew together evidence of these ancient bog roads from across the country. Toghers range enormously in age, with some dating back thousands of years, and the bogs that swallowed them have often preserved the timber in remarkable condition. The Irish Archaeological Wetland Unit at University College Dublin, which gathered much of this kind of field data, was responsible for systematically locating and cataloguing such features at a time when peat extraction was accelerating and the archaeological record beneath the bogs was at serious risk of loss.