A rath, as this type is called, is a roughly circular earthwork enclosure, typically defined by one or more banks and ditches, built during the early medieval period as a farmstead or defended homestead. Most were constructed between around 500 and 1000 AD, and Clare, with its complex mix of limestone karst, fertile lowland, and ancient routeways, contains a particularly dense scatter of them.

The townland name Dough derives from the Irish, and Clare's coastline and interior alike are threaded with placenames that preserve traces of early settlement patterns. Ringforts were the standard unit of rural habitation for much of early medieval Ireland, home to a farming family and their livestock, enclosed against wolves and cattle raiders rather than armies. The bank and ditch arrangement, sometimes reinforced with a timber palisade, defined not just a physical boundary but a legal and social one, marking the household's status within the brehon law system that governed Irish society at the time. Some raths were later adapted, abandoned, or built over, while others remained as earthworks in fields, gathering folklore around them, often becoming associated with the sí, the fairy mounds of Irish tradition, which gave many of them a degree of protection simply through local reluctance to disturb them.