A rath is a circular earthwork enclosure, usually of early medieval date, formed by one or more banks and ditches and originally enclosing a farmstead. The decision to modify one of these ancient boundaries in order to install an industrial structure says something about how later generations treated the landscape they inherited, adapting rather than avoiding features that had stood for centuries.

The detail that connects the kiln to the rath comes from the Archaeological Inventory of County Cork, volume two, covering east and south Cork, published in 1994. The relevant entry records that the bank to the west of the rath was modified to incorporate the limekiln. Limekilns were used to burn limestone at high temperatures, producing quicklime that farmers then spread on fields to reduce soil acidity and improve yields. They were common features of the Irish agricultural landscape from the seventeenth century onwards, and their construction often made use of existing earthworks or natural slopes to form the back wall and draught chamber. Here, the bank of a much older enclosure served that same practical purpose, the prehistoric or early medieval earthwork pressed into service for post-medieval agriculture.