0 an island off the northwestern coast of Wales, which was a county (= an area with its own local government) before 1974 and now, with some other smaller islands, forms the county called Isle of Anglesey:
The Menai suspension bridge linking Anglesey with Holyhead was built by Thomas Telford.
On the other side of Anglesey, at the port of Holyhead, trains from London could meet ferry boats to Dublin.
The Isle of Anglesey (Ynys Môn in Welsh) is situated off the northwest coast of Wales near the beautiful Snowdonia mountain range.
The Isle of Anglesey has the highest percentage of native Welsh speakers in Wales.