That plain designation, used by archaeologists to describe a defined area enclosed by a bank, ditch, wall, or some combination of these, covers an enormous range of possibilities. It might be the remains of a ringfort, the most common monument type in the Irish landscape, built during the early medieval period as a farmstead and status marker. It might be something older or stranger. The record exists, the monument is real, but the details that would tell us what it looked like, when it was built, or what survives today have not yet been made publicly available.