Claim: The South Wales Valleys are located in Wales.

The A465 is a major road in south Wales . That part of it westwards from Abergavenny is more commonly known as the Heads of the Valleys Road because it joins together the northern ends -LRB- or ` heads ' -RRB- of the South Wales Valleys . This section is also officially known as the Neath to Abergavenny Trunk Road . It approximately follows the southern boundary of the Brecon Beacons National Park , and an Ordnance Survey Pathfinder guide describes it as the unofficial border between rural and industrial South Wales . It provides a more direct and toll-free route between Northern England and the Midlands to South West Wales and Ireland .