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
Preston on Wye Gwrfoddw, who was king of Ergyng, after a victory in battle over the Saxons granted land at Bolgros to Bishop Ufelfyw - Bolgros was said to be "on the banks of the Wye, at some distance from Mochros (now Moccas)" - in thanksgiving for the victory. Bolgros is believed to have been Preston-on-Wye, and a church was built on the site of the present church, dedicated to the Holy Trinity, St Peter, St Dubricius and St Peter. The village has two seasonal campsites located close to the River Wye for canoeists. Preston on Wye Preston on Wye is a village