Swansea Valley
valley of the River Tawe in Wales, United Kingdom
The Swansea Valley (Welsh: Cwm Tawe; lit. 'Tawe Valley') is one of the South Wales Valleys. It is the valley from the Brecon Beacons National Park to the sea at Swansea of the River Tawe in Wales. Administration of the area is divided between the City and County of Swansea, Neath Port Talbot County Borough, and Powys. A distinction may be drawn between the Lower Swansea Valley and the Upper Swansea Valley; the former was more heavily industrialised during the 19th and 20th centuries.
Settlements and transport
Towns and villages include Clydach, Pontardawe, Ystradgynlais, Ystalyfera and Abercraf. In its September 2005 document Towards a Valleys Strategy, Neath Port Talbot County Borough Council noted that a marked divide existed between the more remote communities at Ystalyfera and along the Twrch and Amman valleys and the reasonably prosperous southern communities of Pontardawe, Alltwen, Rhos, and Trebanos.
The area has had no rail connection since passenger services on the Swansea Vale Railway line between Swansea and Brynamman via Ystalyfera ceased in 1952.
The A4067 road links Swansea and Brecon.
Attractions
The Upper Swansea Valley is the site of Dan yr Ogof Caves, claimed to be the largest show cave complex in Western Europe. South of Abercrave, the valley was formerly a region of heavy industry including coal mining and iron-making and there is plenty of the industrial heritage surviving; the Swansea Canal was built along the valley in the late 18th century to serve the nascent local industries.
“Swansea Valley” enters the record as valley of the River Tawe in Wales, United Kingdom. Crown Archives preserves that source wording while asking what Swansea, Valley and valley can confirm, complicate or overturn.
Why this record matters
“Swansea Valley” is worth following because a concise public description often conceals a longer documentary argument. Here, Swansea, Valley and valley provides the most credible route into that argument.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Feb 19, 2026. The linked authority identifier is Q7653726. The Library of Congress control number is sh2015000615. Authority coordinates are 51.759, -3.790. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2005 and 1952.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
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Three-step research path
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Questions for further research
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This entry incorporates text from “Swansea Valley” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.