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
Wye Valley Walk Wye Valley Walk The Wye Valley Walk () is a long distance footpath in Wales and England following the course of the River Wye. In 1975 the Wye Valley Walk opened with a stretch between St. Arvans and Monmouth. Further stretches were added, leading to it becoming a 34-mile (55 km) footpath by 1981. During the 1980s, gaps between Ross-on-Wye, Hay-on-Wye and Rhayader were integrated into the pathway, forming a walk reaching from near the river's mouth at Chepstow in Monmouthshire, to Rhayader in Mid Wales. In September 2002, the route was finally extended to start or finish in Coed