Caer y Twr, Roman hillfort in Trearddur, United Kingdom.
The stone ramparts of Caer y Twr extend along the northern and eastern sides, reaching heights of three meters on Holyhead Mountain.
Archaeological excavations at the site uncovered foundations of a Roman tower dating from the second to fourth centuries CE during the Roman occupation.
The name Caer y Twr derives from Welsh language elements, translating to 'fort of the pile', reflecting the Welsh linguistic heritage of Anglesey.
Access to the fort requires walking up steep, narrow paths from the eastern side of Holyhead Mountain, with limited parking available near local houses.
The fort holds a strategic position with clear views extending toward the Isle of Man, suggesting its potential role in monitoring maritime traffic.
Location: Trearddur
Website: https://cadw.gov.wales/visit/places-to-visit/caer-y-twr
GPS coordinates: 53.31410,-4.67420
Latest update: March 12, 2025 00:00
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