The edge of the valleys
Most of the Breconshire part of the Swansea valley lies in
the old parish of Ystradgynlais, once an agricultural area of
about 12,000 acres. It is uncertain when coalmining first began
in the valley but iron was made at the Ynysdedwyn Iron Works
at least as long ago as the early eighteenth century.
Coalmining and steel production locally eventually declined but the landscape of the valley and the outlook of its people were marked for ever by the experiences of that time.
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