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.
Radnorshire is one of the thirteen historic counties of Wales and a former administrative county. It covers a sparsely populated area in mid Wales. The historic county 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 Elan Valley Reservoirs are a chain of man-made lakes created from damming the Elan and Claerwen rivers within the Elan Valley in Mid Wales. The reservoirs, which were built by the Birmingham Corporation Water Department, provide clean drinking water for Birmingham in the West Midlands of England. The five lakes are known as the Claerwen, Craig-goch, Pen-y-garreg, Garreg-ddu, and Caban-coch.
Llanrhaeadr-ym-Mochnant is a village, community and an ecclesiastical parish in the extreme north of Powys, Wales; about 9 miles west of Oswestry and 12 miles south of Llangollen, on the B4580. It lies near the foothills of the Berwyn mountains on the river Rhaeadr. At the top end of the valley is the Pistyll Rhaeadr waterfall, one of the Seven Wonders of Wales in the old rhyme. One mile north of the town is the hill Moel Hen-fache. The community includes the hamlet of Llanarmon Mynydd Mawr.
Rhayader is a market town and community in Powys, Wales, within the historic county of Radnorshire. The town is 20 miles (32 km) from the source of the River Wye on Plynlimon, the highest point of the Cambrian Mountains, and is located at the junction of the A470 road and the A44 road 13 miles (21 km) north of Builth Wells and 30 miles (48 km) east of Aberystwyth.
The Elan Valley is a river valley situated to the west of Rhayader, in Powys, Wales, sometimes known as the "Welsh Lake District". It covers 70 square miles (180 km2) of lake and countryside.
The Claerwen reservoir and dam in Powys, Wales, were the last additions to the Elan Valley Reservoirs system built to provide water for the increasing water demand of the city of Birmingham and the West Midlands. The dam is built mainly of concrete, with the exterior dam face in dressed stone. The dam is a gravity dam built upon solid rock foundations as the pressure of the reservoir behind should be in equilibrium with the total weight of the dam itself thus causing complete stability.
Llansantffraid-ym-Mechain is a large village in Powys, Mid Wales, close to the border with Shropshire in England, about 7 miles (11 km) south-west of Oswestry and 8 miles (13 km) north of Welshpool. It is on the A495 road and is at the confluence of the River Vyrnwy and the River Cain. The population as of the 2011 UK census was 1,415. The community includes the village of Deuddwr and several hamlets.
Llanwrthwl is a village and community in Powys, mid Wales, and the historic county of Brecknockshire. Llanwrthwl lies off the A470 road, north by road from Builth Wells and Newbridge-on-Wye and south of Rhayader. It lies on the River Wye and River Elan and the village is accessed by a bridge over the Wye. In 1833, its population was 517; its population in 1841 was 568; in 1845, its population was 563.
Llanyre is a village and electoral ward in Radnorshire, Powys, Wales. The community had a population of 1,061 in 2001, increasing to 1,141 at the 2011 Census. It includes the village of Newbridge-on-Wye.
Gwrtheyrnion or Gwerthrynion was a commote in medieval Wales, located in Mid Wales on the north side of the River Wye; its historical centre was Rhayader. It is said to have taken its name from the legendary king Vortigern. For most of the medieval era, it was associated with the cantref of Buellt and then Elfael, small regional kingdoms whose rulers operated independently of other powers. In the Norman era, like the rest of the region between Wye and Severn it came to be dominated by Marcher Lordships.
Rhwng Gwy a Hafren was a region of medieval Wales, located in the Welsh Marches between Powys to the north and Brycheiniog to the south. It was bounded by the rivers Wye and Severn. It covered about the same territory as Radnorshire, now part of the county of Powys. The region first came into its own in the 9th or 10th centuries, when it was ruled by leaders who operated independently of the surrounding kingdoms. After the Norman invasion, it comprised the central part of the Welsh Marches and was the site of frequent struggles between Welsh and Norman forces.
Rhayader railway station was a station serving the town of Rhayader, Powys, on the Mid Wales Railway line.
Elenydd is an upland area of Mid Wales, extending across parts of northern and eastern Ceredigion and Powys between Aberystwyth and Rhayader. Elenydd is also a name given to the medieval commote of Cwmwd Deuddwr which covered approximately the same area.
Stephen W Williams or Stephen Williams (1837–1899) was a civil engineer and architect who worked mainly in Radnorshire and Breconshire, Wales. He was county surveyor of Radnorshire from 1864 to 1899. He had offices at Rhayader and lived at Penralley House, Rhayader, He became a noted authority on the archaeology of the Cistercian Monasteries in Wales and undertook excavations at Strata Florida Abbey in Ceredigion, Abbey Cwm Hir in Radnorshire and Strata Marcella near Welshpool in Montgomeryshire. He was appointed High Sheriff of Radnorshire in 1899.
Emmeline Lewis-Lloyd was an early Welsh alpine mountaineer. She was in the first party to climb Aiguille du Moine in 1871 with Jean Charlet.
Ystrad Marchell was a medieval commote in the cantref of Ystlyg in the Kingdom of Powys. It roughly coincides with the parish of Welshpool.
Deuddwr was a medieval commote (cwmwd) in the cantref of Ystlyg in the Kingdom of Powys.
Mochdre is a small village in the community of Mochdre with Penstrowed, in Montgomeryshire, Powys, Wales.
