Dun VulanDun Vulan Broch is an Iron Age broch in South Uist, Scotland.LocationDun Vulan is located in South Uist. The site is now situated on an exposed promontory but was originally on a freshwater lake.DescriptionDun Vulan is an Iron Age broch located on the southern edge of the promontory; it is now protected as a sea wall. Excavations revealed an oval-shaped broch with a maximum diameter of 19.5 metres, with walls surviving to 4.5 metres in height and 4 metres in width.HistoryBetween June 1991 and July 1996 Dun Vulan was excavated as part of the SEARCH Project. The excavations suggested that there were no earlier structures predating the main structure on site.