No bank, no ditch, no raised ground marks the spot. The land has been smoothed over entirely, and a visitor standing in the right field would have no way of knowing that anything had ever been there at all.

Ordnance Survey maps from both 1838 and 1922 record a circular ringfort-like enclosure at this location, roughly 25 metres in diameter. A rath, as these earthen enclosures are commonly known, was typically a circular farmstead of the early medieval period, defined by one or more earthen banks and ditches and used as both a domestic and an agricultural space. Whatever stood here was legible enough to be mapped twice across nearly a century of surveying, yet at some point between those records and the present day it was levelled completely, most likely through agricultural improvement of the land. What makes this site quietly unusual is the company it keeps even in absence: a second rath survives approximately 155 metres to the south-west, and a third lies around 190 metres to the north-west. The Castlehill area once held at least three of these enclosures in relatively close proximity, a clustering that suggests a settled and organised early medieval landscape across this part of Mayo.