At Ahane in County Kerry, a low hillock in pastureland holds what may once have been a rath, the Irish term for a ringfort, typically a circular earthen enclosure used as a farmstead and defended homestead during the early medieval period. Today, nothing of it is visible at ground level. The grass grows over it without ceremony, and a visitor standing on the spot would have no particular reason to pause.

The site owes what documentation it has almost entirely to the Ordnance Survey's six-inch map of 1846, which records a circular enclosure roughly forty metres in diameter at this location. That survey, undertaken in the mid-nineteenth century with considerable care for earthworks and field monuments, caught the feature at a moment when it may still have retained some faint surface expression. Since then, agricultural use of the land has apparently flattened whatever remained. The designation as a "possible rath" reflects genuine uncertainty; the cartographic evidence points in one direction, but without excavation or surviving earthworks, a firm identification cannot be made.