What was once a rath, a type of ringfort built from an earthen bank and enclosing ditch that served as a farmstead during the early medieval period, has been almost entirely levelled. Almost, but not quite.

By 1937, when the Ordnance Survey captured this part of Cork on its six-inch mapping series, the site was still legible enough to be marked as a hachured circular enclosure, roughly thirty metres in diameter, with an external fosse, essentially a surrounding ditch, running from the west around to the north. That map record is now among the more informative documents relating to the site, because the earthworks have since been reduced to very little. What remains on the ground amounts to a low rise forming an arc to the south-west and a shallow depression to the north-west where the fosse once ran. The shape of the place survives as an impression in the land rather than a structure upon it.

Thousands of ringforts are recorded across Ireland, making them among the most common archaeological monument types in the country, yet individual examples like this one are easily overlooked precisely because they have been absorbed so thoroughly into the working landscape. Pasture covers the slight contours; cattle graze across what was once a defined interior space. The Clashelane example is a useful reminder that the absence of obvious remains does not mean the absence of archaeology, only that the evidence has become harder to read.