First documented in 1879, this subterranean structure was described as being of modest proportions, with walls built from small stones and a roof constructed of flagstones. Though no visible trace remains above ground today, the site continues to intrigue archaeologists and historians studying these enigmatic features of the Irish landscape.

Archaeological investigations carried out in 2005 and 2007 sought to uncover more about this hidden heritage site and its surroundings. During pre-development testing in November 2005, archaeologist Richard Crumlish excavated eight trenches across three adjacent sites within the constraint area for the enclosure and souterrain. Despite extensive excavation work, reaching depths of up to 0.85 metres through topsoil into natural subsoils of sandy clay, silty clay and sandy loam, no archaeological features or artefacts were discovered. The investigation was somewhat hampered by two grass-covered drains that flooded portions of the trenches with water.

A second investigation in April 2007 focused on a nearby location within the same archaeological constraint zone, where a cashel site, enclosure and the souterrain were believed to exist. Five machine-excavated trenches revealed only natural undisturbed stratigraphy beneath layers of modern fill and topsoil, with finds limited to contemporary materials such as pottery sherds, concrete and plastic. These investigations, whilst failing to locate the souterrain described in the 19th century, provide valuable insight into the challenges of archaeological preservation and the ephemeral nature of some historical sites in the Irish countryside.