The terraces run roughly east-north-east to west-south-west, enclosed by wide earthen banks forming rectangular shapes, with a more substantial bank sitting to the east. From the ground they might read simply as old field boundaries or natural undulations, but an aerial photograph taken in November 2011 revealed something more intriguing: the cropmark of a large, sub-circular enclosure that appears to be trivallate, meaning it was originally defined by three concentric ditches or banks. Cropmarks form when buried earthworks affect the growth of crops or grass above them, making features invisible at ground level suddenly legible from the air.

The layers of history folded into this site are genuinely difficult to unpick. The 1657 Down Survey map of Fore barony, a systematic land survey carried out under Cromwellian administration, places a medieval castle of Derrynagarrah in this general area, and the earthworks here may represent what remains of that structure. By 1808, however, when William Larkin produced his detailed county map of Westmeath, the record had shifted: Larkin marked not a castle but the ruins of two buildings at this location. The terracing could be the remnant of landscaping or a formal garden attached to those later buildings, which suggests the site was adapted and reused across several centuries. The modern farm buildings lying to the north of the terracing may themselves occupy the ground where one of those ruined structures once stood, quietly extending the sequence of occupation into the present.