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The Afon Hepste is a river in Powys, Wales, though partly forming the county's border with Rhondda Cynon Taf. It runs wholly within the Brecon Beacons National Park.
The Black Mountain is a mountain range in South and West Wales, straddling the county boundary between Carmarthenshire and Brecknockshire and forming the westernmost range of the Brecon Beacons National Park. Its highest point is Fan Brycheiniog at 802 metres or 2,631 ft. The Black Mountain also forms a part of the Fforest Fawr Geopark.
Fan Fawr is a mountain in the Fforest Fawr section of the Brecon Beacons National Park, in Powys, Wales and over 734 m (2,408 ft) high.
The Nedd Fechan is a river almost wholly within the county of Brecknockshire, Wales, currently administered as part of the unitary authority of Powys. It rises on the eastern slopes of Fan Gyhirych in the Fforest Fawr section of the Brecon Beacons National Park and flows south for 7 miles (12 km) to join with the Afon Mellte at Pontneddfechan, their combined waters continuing as the River Neath to the sea near Swansea. The only significant tributary of the Nedd Fechan is the Afon Pyrddin which joins it at Pwll Du ar Byrddin. Downstream of this confluence it forms the boundary between Brecknockshire to its east and Glamorgan to its west.
Fforest Fawr is an extensive upland area in the county of Powys, Wales. Formerly known as the Great Forest of Brecknock in English, it was a royal hunting area for several centuries but is now used primarily for sheep grazing, forestry, water catchment and recreation. It lies within the Brecon Beacons National Park.
The Afon Pyrddin is a river forming a short section of the boundary between the counties of Brecknockshire and Glamorgan in Wales, Great Britain. It also forms a part of the boundary of the Brecon Beacons National Park, and the boundary of the unitary authorities of Powys and Neath Port Talbot. The river and its waterfalls are one of the key attractions of the Fforest Fawr Geopark designated in 2005.
The Afon Llia is a short river in Powys, Wales, and which is wholly contained within the Brecon Beacons National Park.
The Afon Haffes is a river in Powys, Wales and is wholly contained within the Brecon Beacons National Park.
The Nant Gwys is a river flowing off the Black Mountain in Powys, Wales. Its tributaries Gwys Fawr and the Gwys Fach flow south from Banwen Gwyn and Bwlch y Ddeuwynt respectively and join forces to form the Nant Gwys proper which then flows for about 5 km / 3 mi to its confluence with the Afon Twrch at Cwm-twrch-Uchaf.
Fan Nedd is a mountain in the Fforest Fawr area of the Brecon Beacons National Park in Wales. In common with the rest of the Fforest Fawr uplands it is within the county of Powys.
Fan Llia is a subsidiary summit of Fan Fawr in the Fforest Fawr section of the Brecon Beacons National Park, Wales. In common with other peaks in the Fforest Fawr uplands it lies within the county of Powys.
The Afon Senni is a river in Powys, Wales which rises in the Fforest Fawr section of the Brecon Beacons National Park and flows northwards for 11 kilometres (7 mi) to a confluence with the River Usk at Sennybridge.
The Afon Cynrig is a river in Powys, Wales whose headwaters rise in the central Brecon Beacons and flow northwards to join the River Usk at Abercynrig just east of Brecon.
The Afon Cennen is a river in the county of Carmarthenshire, south Wales. It rises on the northern slopes of the Black Mountain to the east of the summit of Tair Carn Uchaf and flows north to Blaencennen Farm, then westwards past Carreg Cennen Castle, continuing through the village of Trap where it exits the Brecon Beacons National Park. Near the hamlet of Derwydd it turns northwest for a mile then northeast to run through the village of Ffairfach to its confluence with the River Towy/Afon Tywi opposite Llandeilo.
The Afon Sawdde is a river in the county of Carmarthenshire, Wales. For most of its course it flows through the Brecon Beacons National Park and Fforest Fawr Geopark.
Tair Carn Uchaf is a hill in the Brecon Beacons National Park in the county of Carmarthenshire, Wales. Its summit sits atop a plateau-like ridge at 482 metres (1,580 ft) above sea level and is marked by one of the three huge cairns which give the mountain its name.
Carreg Cadno is a hill five miles northeast of Abercraf in the county of Powys, south Wales. It lies within the Brecon Beacons National Park and Fforest Fawr Geopark. Its summit at OS grid ref SN 874161 reaches a height of 538m / 1763 ft above sea level. The hill is within the Ogof Ffynnon Ddu National Nature Reserve which is owned and managed by the Countryside Council for Wales.
The Afon Llynfi is a short river in the county of Powys, south Wales. A tributary of the River Wye, it runs approximately south to north just to the west of the Black Mountains and partly within the Brecon Beacons National Park. The river rises as a small stream to the west of the village of Bwlch and flows north for two miles into Llangorse Lake. It leaves the lake just to the southwest of the village of Llangors and follows a course past the hamlets of Trefecca and Tredustan. The river then travels between the twin villages of Talgarth and Bronllys, forming the boundary of the national park in part. It then flows northeast past the village of Three Cocks before entering the River Wye just upstream of Glasbury Bridge.
The Afon Hydfer is a short river in Powys in the west of the Brecon Beacons National Park, south Wales. Its headwaters rise on the northeastern slopes of the Black Mountain as the streams named Trinant, Nant y Cadno, Nant yr Erydr and Crognant joining to flow down Cwm yr Afon on the western edge of Glasfynyd Forest. The river turns east at Blaenau Uchaf, then northeast through Cwm Hydfer and joins the River Usk just below Pont ar Hydfer. Other tributaries of the Hydfer include the streams of Nant Cil-y-clawdd, Nant Crinog and Nant Meity.
The Afon Sychryd is a river in Rhondda Cynon Taf, Wales. Although it is a relatively short river, with a total length of 3 miles (5 km), it is notable for the gorge and two waterfalls through which it flows.
References
- ↑ Ordnance Survey Explorer map OL12 'Brecon Beacons National Park: western area'
- ↑ British Geological Survey 1:50,000 map 231 'Merthyr Tydfil' & accompanying memoir
- ↑ Brecon Beacons National Park