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A478 road
Major road in Wales / From Wikipedia, the free encyclopedia
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The A478 road is a major road in Wales. The route is from its junction with the A487 at Cardigan, Ceredigion, to Tenby, Pembrokeshire. It crosses the Preseli Hills and winds through farmland for almost all of its route.[2] The road just touches the very west of Carmarthenshire.[3]