Usk (Welsh: Brynbuga) is a small town in Monmouthshire, south-east Wales, situated 10 miles (16 km) northeast of Newport.It is located on the River Usk, which is spanned by an arched stone bridge at the western entrance to the town. A castle above the town overlooks the ancient crossing point. It developed as a small market town, with some industry including the making of Japanware, and a notable prison.