No surface trace remains visible, the vegetation having long since closed over whatever entrance or depression might once have betrayed it. The combination of two layered absences, a hidden passage within a hidden enclosure, gives the site an unusually spectral quality.

A cashel is a dry-stone ringfort, a circular enclosure built in early medieval Ireland typically to protect a farmstead and its inhabitants. Souterrains are underground stone-lined passages or chambers, usually associated with such settlements, and were likely used for cold storage, refuge, or both. The souterrain at Skehanagh sits within the cashel recorded separately in the Galway Sites and Monuments inventory. The cashel itself is described as densely overgrown, meaning that even the enclosing walls are difficult to read on the ground, let alone the subterranean feature within them. What the site preserves, in a sense, is precisely its own inaccessibility.