These earthen monuments, raised over the dead during the Bronze Age or earlier, can range from modest grass-covered humps barely distinguishable from natural undulation to more pronounced circular or elongated mounds with surrounding ditches. That this one exists is recorded; what it looked like, how large it was, whether it retained any clear structural definition, remains, for now, undisclosed.

Barrows are among the most ancient visible features of the Irish countryside, constructed over a period spanning roughly 4,000 to 2,000 BCE, though the tradition continued in various forms well beyond that. They served as funerary monuments, sometimes covering cremated remains, sometimes inhumations, occasionally with accompanying grave goods. The townland name Corratanvally, in the west of Mayo, places this monument within a region where such prehistoric remains are not uncommon, scattered across a landscape shaped as much by its boggy terrain as by its long human occupation. Without further detail on this particular mound, its dimensions, condition, or any associated finds, it exists in the record largely as a place-name and a category.