Beyond the main island, a Bronze Age cemetery can be found on Vatersay, as well as an Iron Age broch; the remains of a similarly aged broch can be found on the east of Barra itself. Remains of Bronze Age burials and Iron Age roundhouses were also discovered in sand dunes, near the hamlet of Allasdale, following storms in 2007. Occupation of Barra continued during the later Iron Age, as evidenced by the discovery of a wheelhouse from the end of the period, which was later re-occupied between the 3rd and 4th centuries, and again in the 7th and 8th centuries.