What was once a named routeway, significant enough to appear on Ordnance Survey maps from 1840 and again in 1916, now survives in places as little more than a shallow depression in the ground, sometimes edged by a low grass-covered bank, sometimes flanked by the tumbled remains of drystone walls. Stretching from Leamaneh in the south-west to Kiltacky More in the north-east, it is the kind of feature that registers only when the light falls at a particular angle across the field.

The road takes its name from Donough O'Brien, created a Baronet in 1686 and resident at Leamaneh Castle, a tower house and later fortified house that still stands in the Burren. Sir Donat, an anglicised rendering of the Irish Donough, apparently gave his name to a route that may have connected his seat at Leamaneh with the broader landscape around it. What survives today does not read as the work of anyone trying to make travel easy. In the Kiltacky Beg section, the trackway meanders up and down across the terrain, descending into a sunken area before rising again southward into Kylecreen townland, passing to the west of an old enclosure and then climbing a hill to pass through a narrow ravine cut between karstic outcrops. Karst is the fractured, fissured limestone terrain characteristic of the Burren, and the ravine here feels less like an engineered route than a path that simply followed the grain of the rock.

An inspection carried out in 2000 traced the trackway as far as a church to the south, though dense overgrowth prevented any firm conclusion about whether it continues further. The visible section in Kiltacky Beg runs roughly 1.4 kilometres north to south and is approximately 40 metres wide, a generous width suggesting this was once a substantial corridor rather than a simple footpath. Where modern tarred roads overlay the older line, the connection to the seventeenth century and earlier is almost invisible, absorbed into the everyday. Elsewhere, where the grass banks and collapsed walls survive, the route retains something of its own strange persistence.