| Holyhead Mountain | |
|---|---|
 Holyhead Mountain from the town's New Park | |
| Highest point | |
| Elevation | 220 m (720 ft) |
| Prominence | 220 m (720 ft) |
| Parent peak | none - HP Holy Island |
| Listing | Marilyn, council top |
| Coordinates | 53°18′47″N 4°40′35″W / 53.31297°N 4.6763°W |
| Geography | |
| OS grid | SH218829 |
| Topo map | OS Landranger 114 |
Holyhead Mountain (Welsh Mynydd Twr, from mynydd 'mountain, unenclosed land' and twr 'a heap, pile')[1] is the highest point on Holy Island, Anglesey, and in the county of Anglesey, north Wales. It lies about two miles west of the town of Holyhead, and slopes steeply down to the Irish Sea on two sides. Ireland can be seen from here on a clear day and the cliffs below are an important site for seabirds.
- ^ Pierce, Gwynedd O.; Roberts, Tomos (1999). "Mynydd Twr/Mynydd Tŵr". Ar draws gwlad 2 : ysgrifau ar enwau lleoedd. Llanrwst: Gwasg Carreg Gwalch. p. 69. ISBN 0-86381-556-1. OCLC 41159255.