Over 60 crop-marked enclosures have been identified across south Ceredigion and north Pembrokeshire since the 1980s, many of them rectangular—a form unique to this region. From 2004 to 2007, geophysical surveys and targeted excavations investigated a selection of these sites, revealing that while surface evidence is minimal, significant buried archaeology survives. Features such as roundhouses, hearths, postholes, and ditches point to Iron Age settlement activity, though some sites may date earlier or later. This work has greatly enhanced our understanding of these enigmatic enclosures and their place in Wales’s prehistoric landscape.
