Powys is a county and preserved county in Wales. It borders Gwynedd, Denbighshire, and Wrexham to the north; the English ceremonial counties of Shropshire and Herefordshire to the east; Monmouthshire, Blaenau Gwent, Merthyr Tydfil, Caerphilly, Rhondda Cynon Taf, and Neath Port Talbot to the south; and Carmarthenshire and Ceredigion to the west. The largest settlement is Newtown, and the administrative centre is Llandrindod Wells.
Until 1974, Radnorshire was an administrative county in mid Wales, later classed as one of the thirteen historic counties of Wales. It covered a sparsely populated area, and was bounded to the north by Montgomeryshire and Shropshire, to the east by Herefordshire, to the south by Brecknockshire and to the west by Cardiganshire.
The River Towy is one of the longest rivers flowing entirely within Wales. Its total length is 120 km (75 mi). It is noted for its sea trout and salmon fishing.
The River Teifi in Wales forms the boundary for most of its length between the counties of Ceredigion and Carmarthenshire, and for the final 3 miles (4.8 km) of its total length of 76 miles (122 km), the boundary between Ceredigion and Pembrokeshire. Its estuary is northwest of Cardigan, known in Welsh as Aberteifi, meaning 'mouth of the Teifi'. Teifi has formerly been anglicised as "Tivy".
The River Cynon in South Wales is a main tributary of the Taff. Its source is the rising of Llygad Cynon at 219 m (719 ft) above sea level at Penderyn, Rhondda Cynon Taf and flows roughly southeast, into the Taff at Abercynon in the same district. The water emerging at Llygad Cynon has been traced back to the sink of the Nant Cadlan at Ogof Fawr.
The A481 is a road in Powys, Wales, which connects with the A483 road, not far from the A470 road at Llanelwedd, Builth Wells and leads to the A44 road near Llanfihangel Nant Melan. It is the main road leading to the A44 which connects Builth to Leominster and Hereford across the border with England.
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 Camddwr is a significant right-bank tributary of the River Towy in the eastern part of Ceredigion, mid Wales. It rises on the undulating plateau east of Garn Gron (52.2253°N 3.8247°W) and flows in a generally south-southeasterly direction into Llyn Brianne, a reservoir formed by the damming of the upper Towy, (52.1574°N 3.7656°W). A chapel at Soar y mynydd beside the river is often mentioned as being the most isolated in Wales.
The Camddwr is a right-bank tributary of the River Teifi in Ceredigion, mid Wales. It rises to the west of the village of Bronnant and flows in a generally southeasterly direction to join the Teifi at Cors Caron, an extensive inland marsh protected as a national nature reserve. Its tributary streams include the right-bank ones of Afon Talfryn, Afon Hirfain, Nant yr Efail and Nant Tyn-y-swydd and Camddwr fach which enters on its left bank.
Afon Irfon is a river in Powys, Wales. It flows from the upper slopes of Bryn Garw in the Cambrian Mountains, through the Abergwesyn Valley, past the Nant Irfon National Nature Reserve in the hills above the village of Abergwesyn, and through Llanwrtyd Wells to its confluence with the River Wye at Builth Wells. The source of the Irfon is in the so-called 'Desert of Wales'.
Dulas or Afon Dulas is a minor right-bank tributary of the River Ithon, itself a tributary of the River Wye. It is formed as several brooks meet near the village of Nantmel and runs east and southeast to join the Ithon just to the north of Llandrindod Wells.
The Afon Elan is a tributary of the River Wye which runs through the wide expanse of upland moors, traditionally known as Elenydd, in central Wales. Its valley is the Elan Valley. The name probably arises from elain meaning 'hind' or 'fawn' in reference perhaps to the rushing, bounding nature of its course.
Tinboeth Castle was a medieval castle situated midway between Llanbister and Llanbadarn Fynydd in Wales, on a bend in the River Ithon.
Llanbister is a small village and community with a 2011 population of 382 in Powys, mid Wales, in the historic county of Radnorshire.
Painscastle is a village and community in Powys, Wales which takes its name from the castle at its heart. It lies between Builth and Hay-on-Wye, approximately 3 miles from the Wales-England border today. The community also includes the villages and settlements of Rhosgoch, Bryngwyn, Llandeilo Graban and Llanbedr. The population as of the 2011 UK Census was 524. It is represented by the Painscastle and Rhosgoch Community Council, which comprises eight community councillors. It is included in the Glasbury electoral ward for Powys County Council elections.
The Garren Brook is a small river in Herefordshire, England which rises beneath the eastern slopes of Garway Hill. It flows east to the hamlet of Orcop where it turns south, taking a series of incised meanders past St Weonards before turning east again, then south past Llangarron, again in a series of incised meanders. Southeast of there it enters the right bank of the River Wye at Old Forge. Its largest tributary is the left bank stream known as The Gamber which enters it at Trehumfrey north of Llangarron, having originated on the north side of Orcop Hill. Other right bank tributaries include the Llantywaun and Llanerch brooks. It flows over a landscape formed in the mudstones and sandstones of the St Maughans and Brownstones formations of the Old Red Sandstone.
