Dun Mor Vaul

Dun Mor Vaul is an Iron Age broch on a rocky knoll on the north coast of Tiree, one of the rare brochs found in Argyll. The drystone tower has an internal diameter of 9.2 metres with walls 4.5 metres thick, and was additionally protected by two outer defensive lines including a hornwork restricting landward access. Excavations revealed occupation from the 5th century BC, initially a wooden hut possibly destroyed by fire, followed by broch construction dated by radiocarbon to the 1st century AD. By the 2nd century it became a single-family residence, and the upper storeys were later demolished to build an aisled wheelhouse inside, with abandonment around the mid-3rd century. Its pottery sequence has been influential in debates about Iron Age ceramics across Argyll.