4 - Trearddur to Holyhead
Holyhead Mountain Hillfort
A section of the Stone Ramparts of Holyhead Mountain Iron Age Hillfort / Caer y Twr.
The fort , which has an area of 7 ha , is enclosed by substantial stone walls , ruinous in places.
Ref: NW 3545
Date: 20/08/2024
Location: SH 2190 8308
