Nothing about it announces itself. Yet local tradition holds that this unremarkable depression is the blocked entrance to a souterrain, an underground passage or chamber, typically stone-lined, built during the early medieval period and associated with nearby ringforts. They served variously as places of refuge, storage, or concealment, and were usually constructed to be found only by those who already knew where to look.

The site sits at the base of a north-facing slope, and just twenty metres uphill to the south-east lies a rath, a circular earthen ringfort, recorded separately in the Sites and Monuments Record. The proximity is telling. Souterrains were frequently built in direct association with raths, either opening from within the enclosed area or positioned just outside, and the relationship between this depression and the nearby ringfort fits that pattern closely. Whether the entrance was deliberately blocked at some point in the past, or simply collapsed and was left to fill in over time, is not recorded. The stones protruding from the sod suggest that some structural fabric remains just beneath the surface, though the interior, if one still exists, is inaccessible.