It is not much to look at now, around sixty metres long, less than a metre wide, and barely half a metre high in places, but its survival at all is the quietly interesting thing. This is a relict field boundary, the kind of structure that tends to disappear entirely once it falls out of use, yet here it persists, marking out a division of land that someone once thought worth the effort of building.

Close beside the southern face of the wall sit the remains of at least one hut site, and possibly a second. Together, the wall and the huts suggest a small episode of upland occupation, a patch of hill ground that was, at some point, not wilderness but a managed space where people lived and kept animals or cultivated whatever the thin soil and the altitude would allow. Mangerton Mountain rises above the Killarney valley, and its lower slopes would have offered seasonal grazing even when the higher ground was too exposed to be of much use. Small enclosures like this, built from gathered stone without mortar and easily robbed for later construction, are rarely dramatic, but they preserve a faint outline of a working landscape that has otherwise largely vanished from view.