When surveyors sought permission to examine the site, they were turned away, leaving it as one of the few entries in the regional record defined less by what is known than by what could not be established.

The fort is classified as a univallate rath, meaning it is enclosed by a single earthen bank and ditch rather than the multiple concentric rings that mark more elaborate examples. Raths of this type were a common feature of early medieval Ireland, typically serving as farmsteads or enclosed settlements for a family or small community, and thousands survive across the country in varying states of preservation. This particular example on Tarmon Hill appears in C. Toal's North Kerry Archaeological Survey, published in 1995, which catalogued the archaeological heritage of the region in considerable detail. Beyond its classification and location, however, the refusal of access means that the fort's current condition, dimensions, and the survival of any internal features remain unrecorded in any formal sense.