"Rath" and "carraig", meaning fort and rock respectively, point directly to the kind of early medieval enclosure that once defined this landscape, and almost certainly still does, somewhere beneath the grass and stone of the Sligo countryside.

A rath, or ringfort, is a roughly circular enclosure defined by one or more earthen banks and ditches, built primarily as a defended farmstead during the early medieval period, roughly between the fifth and twelfth centuries. Tens of thousands of them were constructed across Ireland, making them the most common archaeological monument type in the country. The fact that an entire townland in Sligo takes its name from one suggests that this particular example was prominent enough, and presumably well-preserved enough at the time of naming, to anchor local identity for centuries. Place-name evidence of this kind often preserves memory of sites that have otherwise been forgotten or absorbed into farmland. The name Rathcarrick layers two descriptors together, the fort and the rock, which may indicate that this enclosure was associated with, or constructed around, a notable rocky outcrop, a feature that would have offered both practical and symbolic advantages to early farmers seeking to define and defend their territory.

Beyond what the name itself discloses, the documentary record for this particular site is currently sparse, and very little detailed information is available in the public domain. What can be said with confidence is that it sits within a county already well populated with early medieval remains, in a region where the drumlin and limestone terrain made ringfort construction both practical and widespread.