The first edition six-inch OS map of 1839 recorded it as a roughly square enclosure of about 24 metres across, with a road running along its south-eastern edge. By the time the same area was resurveyed for the 1900 revision, that same enclosure had been mapped as broadly circular, with a diameter of around 29 metres, its eastern and south-eastern arc cut into by the same road. Whether this reflects genuine re-measurement, a change in the monument itself over six decades of agricultural use, or simply a difference in how two surveyors read what was already a faint earthwork, is not recorded.

A ringfort, or rath, is a type of enclosed settlement most commonly associated with the early medieval period in Ireland, typically consisting of a circular bank and ditch surrounding a farmstead or dwelling. The example at Creenkill More sits on the southern slopes of a small east-west valley in rolling grassland, with open views along the valley to east and west and northward across to the far slope, while higher ground rises behind it to the south. When a field inspection was carried out in 1986, very little was visible above ground and the interior had become heavily overgrown. What could be made out suggested that the enclosure had been cut into the hillside as a terrace, with slight traces of a surrounding bank surviving to roughly half a metre in height internally and between ten and forty centimetres on the outer face. By 2018, the monument could no longer be identified at all in satellite imagery, suggesting that whatever earthwork remained in 1986 has since been further reduced or obscured by vegetation and ground disturbance.