A466 road about long and runs through the counties of Herefordshire and Gloucestershire in England, and Monmouthshire in Wales. It runs south from Kingsthorne, on the A49 south east of Hereford to Monmouth, crossing the A40. After crossing the River Wye at the Wye Bridge, Monmouth and Bigsweir Bridge near Llandogo, it follows a picturesque route south down the Wye valley through Tintern and Chepstow to the M48 motorway at junction 2. The road crosses the border between England and Wales at three places along its length: at Buckholt, Redbrook, and Bigsweir. It runs through an Area of Outstanding Natural Beauty, and
River Wye Wye". River Wye The River Wye () is the fifth-longest river in the UK, stretching some from its source on Plynlimon in mid Wales to the Severn estuary. For much of its length the river forms part of the border between England and Wales. The Wye Valley (lower part) is an Area of Outstanding Natural Beauty. The Wye is important for nature conservation and recreation. The meaning of the name is not clear. Possibly the earliest reference to the name is "Guoy" in Nennius' early 9th Century "Historia Brittonum" and the modern Welsh name is "Gwy". The Wye was much