The Holyhead Mountain Hut Circles are located in the northwesternmost corner of the isle of Anglesey and include foundations of prehistoric roundhouses and other buildings. When it was occupied, it would have been a sizable agricultural settlement.
The hut circles were originally thought to date from the time of the Roman occupation of Wales. Roman coins and pottery have been found here and the huts closely resemble those at Din Lligwy in southeastern Anglesey. More recent excavations, however, have unearthed far older artifacts, including a stone axe, flint arrowheads, and pottery fragments. These finds date to the late Neolithic or early Bronze Age periods, indicating that the site was occupied for a much longer period of time.\
About 20 of an estimated 50 original buildings survive, mostly as circular hut foundations. Some huts include traces of internal divisions, storage areas and furniture such as benches and basins of stone, allowing us a window into how these ancient peoples would have lived.