to AD 1019: confirming that the bank is clearly post-Roman, and that at least some rebuilding work took place after Offa's reign. It has been suggested that Offa's Dyke may have been a long-term project by several Mercian kings. Further excavations by Clwyd-Powys Archaeological Trust on the Dyke at Chirk Castle found well-preserved remains of the ditch under later parkland; radiocarbon samples were recovered, but the results have not yet been made public. Current The England–Wales border still mostly passes within a few miles of the course of Offa's Dyke through the Welsh Marches. A section of the Dyke which overlooks Tintern Abbey and includes the Devil's Pulpit near Chepstow is now managed by English Heritage. Statutory protection All sections of Offa's Dyke that survive as visible earthworks, or as infilled but undeveloped ditch, are designated as a scheduled monument. However, some parts of the Dyke may also remain buried under later development. Some sections are also defined as Sites of Special Scientific Interest, including stretches within the Lower Wye Valley SSSI and the Highbury Wood National Nature Reserve. Parts are located within the Wye Valley and Shropshire Hills Areas of Outstanding Natural Beauty. Most of the line of Offa's Dyke is designated as a public right of way, including those sections which form part of the Offa's Dyke Path. In August 2013, a section of Dyke, between Chirk and Llangollen, was destroyed by a local landowner. The destruction of the Dyke to build a stable was said to be like "driving a road through Stonehenge", but the perpetrator escaped punishment. Candidate World Heritage Site In 2010, the Dyke was proposed by the Offa's Dyke Association and local authorities for World Heritage Site status. Part of the proposal stated: The proposal was rejected in 2011. The Offa's Dyke Centre The Offa's Dyke Centre is a purpose-built information centre in the town of Knighton, on Offa's Dyke on the border between England (Shropshire) and Wales (Powys). Some of the best remains of the earthworks can be seen within a two-minute walk from the centre. Offa's Dyke Path The Offa's Dyke Path (Welsh: Llwybr Clawdd Offa) is a long-distance footpath close to the England–Wales border. Although large sections are close to the Dyke itself, the Path is longer, and in some places passes at some distance from the earthworks. Opened on 10 July 1971, the Path is one of Britain's longest National