The site is not marked by any visible masonry, excavation trench, or interpretive sign. There is simply a rath, a low circular earthwork of the kind built across Ireland during the early medieval period as a farmstead enclosure, and somewhere within its southern half, an entrance that no longer opens.

Souterrains, stone-lined underground passages typically associated with raths and ringforts, are found throughout Ireland and are thought to have served as places of refuge or cool storage during the early medieval period. The one at Gortnaboul was apparently reached by descending stone steps into a passage roofed with horizontal stone slabs, a construction method consistent with many Kerry examples. At some point in the recent past, the entrance was closed off as a safety precaution, and no surface trace of it remains. The rath itself, recorded separately, is the only physical feature still legible in the landscape.

For a visitor, there is genuinely little to see. The rath may be identifiable as a raised or slightly circular earthwork in the field, but the souterrain beneath it has effectively been returned to the ground. Its interest lies less in what can be observed than in what it represents: a feature known largely through the memory of one person, preserved in an archaeological record but physically inaccessible, occupying a peculiar space between documented heritage and ordinary farmland.