Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

Caerleon, town, archaeological site, and residential suburb of Newport, Newport county borough, historic county of Monmouthshire (Sir Fynwy) and Gwent, southern Wales. It lies on the River Usk. It was important as the Roman fortress of Isca, which was, with Deva (Chester) and Eboracum (York), one of the permanent legionary bases in Britain. The foundation of the fortress, set on a terrace in a wide bend of the Usk, is dated to 74–75 ce, during...