Talk:A4221 road

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Date of construction?[edit]

This was a missing link in the road network between the upper Swansea Valley and the A4109 emerging from Glynneath in the upper Vale of Neath. It did not appear on OS maps published in the 1960s - anyone know of a source relating to its construction date and details? Geopersona (talk) 07:49, 27 January 2018 (UTC)[reply]