River Usk River Usk The River Usk (; ) rises on the northern slopes of the Black Mountain ("y Mynydd Du"), Wales, in the westernmost part of the Brecon Beacons National Park. Initially forming the boundary between Carmarthenshire and Powys, it flows north into Usk Reservoir, then east by Sennybridge to Brecon before turning southeast to flow by Talybont-on-Usk, Crickhowell and Abergavenny after which it takes a more southerly course. Beyond the eponymous town of Usk it passes the Roman legionary fortress of Caerleon to flow through the heart of the city of Newport and into the Severn estuary at Uskmouth beyond
Newport, County Mayo Newport, County Mayo Newport (), historically known as Ballyveaghan and for many years also known as Newport-Pratt, is a small town in the barony of Burrishoole, County Mayo, Ireland. The population was 626 in 2016. It is located on the west coast of Ireland, along the shore of Clew Bay, north of Westport. The N59 road passes through the town. The county town of Castlebar is approx 18 km east of Newport. The Black Oak River flows through the centre of the town and there are walking paths along its banks. Bus Éireann route 440, via Westport and Ireland West