Ringforts, known in Irish as raths, were the dominant settlement type of early medieval Ireland, typically consisting of a raised circular area enclosed by one or more earthen banks and ditches. They served as farmsteads for families of varying social rank, the size and number of enclosing banks generally reflecting the status of whoever lived within. There are estimated to be around 45,000 of them across the island, yet each one occupies a particular patch of ground with its own local history, however incompletely recorded.

The name Carrowmore derives from the Irish An Cheathrú Mhór, meaning the big quarter-land, a unit of land division common in the west of Ireland. Mayo has several townlands bearing this name, which reflects how widely the quarter-land system was applied across the province of Connacht. The rath itself belongs to a category of monument that was already ancient when the Anglo-Normans arrived in Ireland in the twelfth century, and many such enclosures had long since been abandoned by then, already becoming earthwork ghosts of earlier habitation. Without more detailed survey information specific to this site, its precise dimensions, condition, and any associated finds remain difficult to characterise beyond the general type.