Whitethorn, or hawthorn, has long been associated in Irish folklore with fairy forts, the common name given to ringforts precisely because locals tended to leave them alone rather than risk disturbing whatever might inhabit them. That superstition, more than any formal protection, is probably why so many of these early medieval enclosures survived the centuries of agricultural improvement that reshaped the Irish countryside.

A ringfort, or rath, is essentially a circular area enclosed by one or more earthen banks, used as a farmstead or settlement during the early medieval period, roughly between the fifth and twelfth centuries. The Dollas example is modest in scale, measuring approximately 27.8 metres north to south and 27 metres east to west, with an earthen bank that rises about 1.35 metres on its outer face. Beyond that bank lies a fosse, the shallow ditch that provided the material for the bank's construction, and beyond the fosse a counterscarp bank of earth and stone running from the eastern side around to the south. The causeway entrance, now much eroded, faces south-east and was originally around 3.5 metres wide, wide enough for livestock as well as people. The survey notes, compiled by Denis Power and uploaded in August 2011, record that a field boundary skirts the enclosure on its western and northern sides, suggesting the site has been worked around rather than through for generations.

The site sits on a gentle north-east-facing slope in pasture, and the interior ground tilts slightly downward in the same direction. There is no dramatic elevation, no panoramic reward for the climb, just rough grass and those two whitethorn bushes standing in the northern quadrant. Access would be through farmland, so the usual courtesies apply, and the low earthworks are easy to miss at certain times of year when grass is long. The fosse, only half a metre deep, is subtle enough that the overall form of the enclosure becomes clearest when you stand back from it rather than walk its perimeter too closely.