Ringforts, known in Irish as raths, were the most common form of rural settlement in Ireland between roughly the sixth and tenth centuries. Typically consisting of one or more circular banks and ditches enclosing a farmstead, they were home to farming families and their livestock, and served as much as a statement of status as a means of defence. Thousands survive across Ireland, ranging from barely perceptible cropmarks to well-preserved raised earthworks, and Skiddernagh holds one such example among Mayo's considerable stock of these ancient enclosures.

The townland name itself, Skiddernagh, carries the texture of a landscape that has been named, farmed, and inhabited across many centuries, the kind of place where early settlement left marks that outlasted the people who made them. Without more detailed documentary or excavation records currently available for this particular site, the broader context is what we have to work with. Raths of this type were generally built and occupied during the early medieval period, a time when rural Ireland was organised around kinship groups and cattle-owning farmers. The earthen banks that defined these enclosures were often topped with timber palisades, and the interior might contain a house, storage pits, and animal pens. Over the centuries, many were abandoned, ploughed over, or absorbed into field systems, making surviving examples all the more significant as markers of a once-dense pattern of settlement across the Irish countryside.