Ceiriog Ucha

Tregeiriog (a Welsh name translating roughly as "settlement [on the] River Ceiriog") is a village in Wrexham County Borough, Wales. It is in the community of Ceiriog Ucha on the B4500 road between Glyn Ceiriog and Llanarmon Dyffryn Ceiriog. The Battle of Crogen, between Welsh forces under Owain Gwynedd and English forces under Henry II of England, took place near Tregeirog in 1165. Richard Jones Berwyn (1838–1917), one of the founders of the Welsh settlement in Patagonia, was a native of the village. Tregeiriog was formerly in the old ecclesiastical parish of Llangadwaladr, of which it was a detached township, surrounded by other parishes. The village of Tregeiriog and the surrounding area were transferred to the parish of Llanarmon Dyffryn Ceiriog in the late 1980s. Although the village had no church, there was formerly a small Calvinistic Methodist chapel in Tregeiriog. Tregeiriog was also in the corresponding civil parish of Llangadwaladr; subsequent to the 1972 Local Government Act it was placed in the community of Ceiriog Ucha. The cartographer Samuel Lewis, in his 1849 edition of A Topographical Dictionary of Wales, recorded that "the inhabitants have a tradition, that there were formerly a church and a considerable town at Tregeiriog; and in ploughing the land, quantities of large paving stones have been thrown up at different times, which seemed to have been placed in regular order: the name of a farm, Pen-yr-hôwl, the "head of the street," is also adduced in corroboration".

Glas Hirfryn is a farm in Cwmdu, at east side of the road through the valley of the Lleiriog on the southern side of the Berwyn Mountains. It is in the community of Llansilin, which was formerly in Denbighshire, but since 1996 has been in the Montgomeryshire part of Powys. The timber-framed farmhouse, which stands within a group of farm buildings was abandoned in the mid-20th century, at which time it was listed as Grade II. The house has now been dated by dendrochronology to about 1559 AD or shortly afterwards.By 2002 the building had largely collapsed, but since 2012 a restoration programme has been started under the supervision of architect Graham Moss and drawing on the expertise of the Clwyd-Powys Archaeological Trust (CPAT). The restoration work has been undertaken by Manor Joinery of Minsterley, Shropshire.

The Cambrian quarry was a slate quarry, located to the west of Glyn Ceiriog in Denbighshire, North Wales. There was some small-scale extraction of slate from the 17th century, but commercial extraction began in 1857, and the scale of operation increased from 1873, when the Glyn Valley Tramway opened, providing an easier route to market for the output of the quarry. Production after 1938 was on a reduced scale, and the quarry closed in the winter of 1946/47, mainly due to a lack of workers.

Rhufoniog was a small sub-kingdom of the Dark Ages Gwynedd, and later a cantref in medieval Wales.

Pandy () is a hamlet in the Ceiriog Valley, Wrexham County Borough, Wales. It is located on the confluence of the River Ceiriog to the east, and the smaller River Teirw flowing from Nantyr moors to the north-west. The river level at Pandy of the River Ceiriog is ~665 feet (203 m), downstream from Llanarmon Dyffryn Ceiriog, and upstream from Glyn Ceiriog.Pandy means "fulling mill" in Welsh. The hamlet is home to a fulling mill thought to be the oldest fulling mill in Wales, dating to 1365, which was later converted into a pub known as the Woolpack Inn, also providing visitor accommodation, and until 2016, was home to the Pandy Mill Gallery, dedicated to glass art. Minerals were also extracted from the local Pandy area, including silica, dolerite, and China stone. Craig y Pandy (the Pandy crags) composed of Volcanic tuff overlooks the hamlet. The Glyn Valley Tramway used to pass the hamlet and was the main transport link of the hamlet, since superseded by the B4500 road which passes through the hamlet.In November 2020, during a 17-day lockdown concerning the COVID-19 pandemic in Wales, the hamlet experienced very low broadband speeds with costs the expand fibre broadband considered expensive at the time.

The Ceiriog Valley (Welsh: Dyffryn Ceiriog) is the valley of the River Ceiriog in north-east Wales. Its Welsh name, "Dyffryn Ceiriog", is the name of an electoral ward of Wrexham County Borough. The ward is the largest ward of the county borough by area and forms a strikingly-shaped salient of the county borough between Powys and Denbighshire.

Llanarmon Mynydd Mawr, occasionally referred to as Llanarmon Fach, is an isolated rural parish in Powys, Wales. It was formerly in Denbighshire, and from 1974 to 1996 was in the county of Clwyd. It measures 2 square miles (5 km2) and has a population of 40.The scattered settlement lies on the south-facing slopes of the Berwyn Mountains in the high upper part of the Tanat Valley, at around 950 feet above sea level. Its name translates roughly as "St Garmon's church [on the] Great Mountain", distinguishing it from the village of Llanarmon Dyffryn Ceiriog, 5 miles (8 km) away in the Ceiriog Valley.

The Deeside and Moelfferna quarries were neighbouring slate quarries, near Glyndyfrdwy in North Wales. They were both operated by the same company throughout their history, and were both connected by the Deeside Tramway to the Llangollen and Corwen Railway.

Glyndyfrdwy (Welsh pronunciation: [ɡlɨnˈdəvrdʊɨ]), or sometimes Glyn Dyfrdwy, is a village in the modern county of Denbighshire, Wales. It is situated on the A5 road halfway between Corwen and Llangollen in the Dee Valley (the river Dee is Afon Dyfrdwy in Welsh).

Moel Fferna is a mountain in Denbighshire, Wales and forms part of the Berwyn range. It is the most northern outpost of the range. The summit is covered in deep heather and has a shelter cairn. A trig point was used to mark the summit, but has since been destroyed. To the south is Pen Bwlch Llandrillo, followed by Cadair Bronwen. It is the highest peak in the Clwydian Range and Dee Valley Area of Outstanding Natural Beauty.

Glyndyfrdwy railway station (pronounced [ɡlɨnˈdəvrdʊɨ], Glin-duvver-doo-ee) is a former station on the Ruabon to Barmouth line near the village of Glyndyfrdwy in Denbighshire, Wales. It is now a preserved railway station on the Llangollen Railway, being reopened by the heritage railway in 1993.

Llanrhaeadr-ym-Mochnant (Welsh pronunciation) 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 (515 m). The community includes the hamlet of Llanarmon Mynydd Mawr. It was an important site in the ancient commote (or cantref; sources disagree) of Mochnant, as indicated by the ym-Mochnant in its name (translates to "in Mochnant").Until 1974, Llanrhaeadr-ym-Mochnant was split into two civil parishes: the northern parish was in historic Denbighshire and the southern parish in historic Montgomeryshire; this reflected the division of the ancient commote in the 12th century. The divide continued between 1974 and 1996, with the former Denbighshire parish being placed in Clwyd and the former Montgomeryshire parish in Powys, each with their own community councils. In 1996, both parts of Llanrhaeadr-ym-Mochnant were united within the county of Powys, and the community councils were amalgamated in 2008.