At Curheen in County Galway, a slight bank of earth and stone was recorded in 1974 running westward from the entrance of a nearby rath, extending roughly eleven metres to the west-northwest. By 1982, when the same site was revisited, the bank was gone, or at least no longer visible. What had been there, and what erased it, remains unresolved.

The bank was recorded in relation to a rath, the GA105-073, which is the classification for a ringfort, a type of enclosed farmstead typically dating from the early medieval period, roughly 500 to 1100 AD. The entrance to such a site is often causewayed, meaning the enclosing ditch is bridged by a raised strip of unexcavated ground, creating a formal threshold. The bank in question ran outward from this gap, leading those who recorded it to suggest it might be part of an earlier field system, predating or contemporary with the rath itself. Field boundaries of this kind, when they survive, can offer rare evidence of how land was organised and worked around a settlement. This one, stretching just eleven metres before it fades from the record entirely, gives only the faintest outline of that picture. The eight years between its first observation and its absence from the second visit are enough to raise questions about whether it was lost to agriculture, weathering, or simply the difficulty of reading low earthworks in varying conditions.