Swansea Valley

Ystalyfera is a former industrial village and community in the upper Swansea Valley, on the River Tawe, about 13 miles (21 km) northeast of Swansea. It is an electoral ward and a community in the unitary authority of Neath Port Talbot, Wales, comprising a resident population of just over 3,000 people, approximately 60% of whom speak Welsh. National Cycle Route 43 passes through the village.

The Afon Twrch is a river which rises in the Black Mountain in south Wales. It forms the boundary between Powys and Carmarthenshire and, downstream of Ystradowen, between Powys and Neath Port Talbot.

Ysgol Gymraeg Ystalyfera Bro Dur is a Welsh-medium comprehensive school in Neath Port Talbot, Wales. The school provides education to three to eighteen-year-old pupils in Neath Port Talbot and south Powys from three campuses in Ystalyfera and Port Talbot.

Ystalyfera railway station served the village of Ystalyfera, in the historical county of Glamorganshire, Wales, from 1861 to 1950 on the Swansea Vale Railway.

The Gleision Colliery mining accident was a mining accident which occurred on 15 September 2011 at the Gleision Colliery, a drift mine at Cilybebyll in Neath Port Talbot, in Wales. The accident occurred while seven miners were working with explosives on a narrow coal seam. Following a blasting operation into a separate disused flooded mine network to increase air-circulation, the tunnel in which the miners were working began to fill with water. Three of the miners escaped, with one being taken to hospital with life-threatening injuries, while the others were trapped underground. A search and rescue operation was launched to locate the four remaining miners, but they were found deceased the following day. The incident is the worst mining disaster to occur in Wales for three decades.

Mynydd Allt-y-grug is a 338-metre-high hill immediately west of Ystalyfera in the county borough of Neath Port Talbot in South Wales. Its twin summits are around 400m apart. The upper part of the hill is largely covered in heather whilst conifers clothe its western slopes and gorse, bracken and bramble cover much of its rough landslide eastern side which rises above the Swansea Valley, drainage on this side flowing to the River Tawe.

Godre'r Graig is a village and an electoral ward of Neath Port Talbot county borough, Wales. The village developed alongside the coal workings at the Tarenni Colliery, which closed in 1949. In 2008 the community came together at a public meeting held in the local primary school regarding the long neglected park. As a result, Godre'r Graig Community Association (GCA) was formed to provide a vehicle for the community to take charge of the park and bring it back into use.

The Tarenni Colliery (Welsh: Gloddfa Tarenni) and its associated workings, are a series of coal mines and pits located between the villages of Godre'r Graig and Cilybebyll located in the valley of the River Tawe, in Neath Port Talbot county borough, South Wales.

Ystradgynlais Community Hospital (Welsh: Ysbyty Cymunedol Ystradgynlais) is a health facility in Glanrhyd Road, Ystradgynlais, Powys, Wales. It is managed by the Powys Teaching Health Board.

Ynyscedwyn Ironworks is an industrial complex located in Ystradgynlais, near Swansea, Wales. Smelting was first established here in seventeenth century. In the 1820s, with the arrival of George Crane, production was expanded. Crane was the first ironmaster who successfully tried anthracite to a blast furnace in 1837. In 1837, London bankers, Charles Price and Joseph Marryat, invested in the Ynyscedwyn Ironworks. The remaining structures were built in 1872 to house a planned steel mill. Although not completed, the site housed the Ynyscedwyn Tinplate Works.

Ystradgynlais railway station served the town of Ystradgynlais in the traditional county of Breconshire, Wales. Opened in 1873 by the Swansea Vale and Neath and Brecon Junction Railway, it was eventually absorbed by the Midland Railway and it closed to passengers in 1932 although the line through the station remained open for freight for some time after that.

Mynydd Marchywel is a 418-metre (1,371 ft) high hill in the Neath Port Talbot area in South Wales. Its summit is marked both by a cairn and a trig point. The larger part of the hill is cloaked in modern forestry through which numerous streams fall away westward to the River Tawe, eastward to the River Dulais and southward into the Clydach, the latter two being tributaries of the River Neath.