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 scullers of all abilities, next to the local rowing club. Walkers can enjoy the Wye Valley Walk which follows the route of the River Wye from Coed Hafren, near Plynlimon, to Chepstow along a series of well-maintained way-marked paths. A viewpoint near The Biblins on the Wye is known as 'Three Counties View', the meeting place of the counties of Herefordshire, Gloucestershire and Monmouthshire. The Wye's tributaries include the river Lugg, Elan, Dulas, Irfon, Marteg, Monnow, Trothy, Ithon, Llynfi, Letton Lake, Tarennig (the Wye's first tributary) and Bidno. The Romantic poet William Wordsworth includes an apostrophe to the Wye in