Excavated to a length of thirteen metres, the feature consists of a double row of stake- and post-holes, the paired rows set between 0.4 and 0.65 metres apart, representing twenty-six individual uprights in total. What those uprights once held, and why they were placed here, remains genuinely uncertain.

The structure was partially excavated during work at Curraghatoor and documented by Doody, whose analysis, published in 2007, interpreted the double row as a fence line running roughly north-east to south-west. Stake- and post-holes are among the most common finds on Irish excavations, the ghostly negatives left in soil after wooden uprights have long since rotted away, and fence lines of this kind were a routine feature of early settlement and agricultural organisation. What makes this one quietly interesting is its isolation: it could not be stratigraphically linked to any of the other features uncovered nearby, meaning the excavators had no way of establishing whether it belonged to the same phase of activity as its neighbours, or represented something entirely separate. A fence with no datable relationship to anything around it, running across a gentle slope, is an oddly solitary thing.