It does not announce itself dramatically. The raised interior stands only about 1.2 metres above the surrounding fosse, and the fosse itself is remarkably shallow, barely half a metre to a metre below the level of the surrounding land. For a structure that was once someone's defended homestead, it wears its age with considerable understatement.

This is a univallate rath, meaning a ringfort enclosed by a single bank and ditch rather than the multiple concentric rings seen at more elaborate sites. Ringforts of this kind were the dominant form of rural settlement in early medieval Ireland, typically dating from roughly the sixth to the twelfth century, and thousands survive across the country in varying states of preservation. The Dromin example measures approximately 28.4 metres north to south and 21 metres east to west, making it a fairly typical sub-circular enclosure of modest proportions. A bank, still discernible along the north-west to west and east to south arcs, runs around four metres wide, with an external height ranging between one and 1.6 metres. The interior is considerably more subdued, rising only 0.3 to 0.5 metres above the fosse. The site was recorded as part of C. Toal's North Kerry Archaeological Survey, published in 1995, which catalogued a wide range of monuments across this often overlooked corner of the county.

The fosse, the shallow ditch encircling the bank, is only about two metres wide here, which suggests this particular rath was not designed primarily for serious defensive purposes. Most ringforts functioned as enclosed farmsteads, the bank and ditch serving to keep livestock in and predators or opportunistic raiders out rather than to withstand any organised assault. What the people who lived inside this one grew, herded, or traded is unrecorded, but the earthwork they left behind has endured quietly in the Kerry pasture for well over a millennium.