On a north-south ridge at Tawnatruffaun in County Sligo, sitting between the valley of the Easkey River to the east and the smaller valley of the Sraffaun Ioe stream to the west, there was once noted a field wall. By the time anyone went looking for it properly, it was gone.

The wall first appeared in the Record of Monuments and Places in 1995, based on an observation made sometime in the early 1990s. The origin of that observation is not known, and no field report from the period survives. When the site was inspected in 2014, the coordinates from the 1995 listing placed investigators in a field that had been reclaimed to good pasture. Most of the ridge had been brought into agricultural use, though a steep slope on the western side retained a covering of peat, with sedges, bog grasses, and tufts of heather still holding on. The field wall itself left no trace. The most likely explanation is that it was removed during the reclamation works that transformed the surrounding land.

What makes this place quietly interesting is precisely the gap it represents. The wall had not been recorded in the earlier Sites and Monuments Record of 1989, appeared from an unknown source five or six years later, and had vanished from the ground entirely before anyone could properly document it. The peat slope on the western edge of the field survives as a small remnant of what the landscape once looked like before reclamation, a patch of bog vegetation clinging to ground that the surrounding pasture has otherwise absorbed.