Hay-on-Wye the north-easternmost tip of the Brecon Beacons National Park, just north of the Black Mountains. The town is just on the Welsh side of the border with Herefordshire, England, here defined by the Dulas Brook. Where the brook joins the River Wye just north of the town, the border continues northwards along the river. The Wye was the boundary between the former counties and districts of Radnorshire and Brecknockshire. The adjacent village of Cusop lies on the English side of the Dulas Brook. The nearest city is Hereford, county town of Herefordshire, some to the east. The Royal Mail depot
River Wye, Derbyshire just south of Tideswell, then through Ashford in the Water and Bakewell, and south of Haddon Hall, before meeting the River Derwent at Rowsley. The main tributary of the river is the River Lathkill, which enters approximately one mile from its mouth. The River Wye is one of Derbyshire's best known rivers and is popular with anglers owing to the large numbers of wild brown, rainbow trout and grayling it contains. The alkalinity of the Wye provides a rich source of nutrients that leads to an abundance of insects, invertebrates and other wildlife. This ensures that the Trout and Grayling