Penisa'r Waun

The River Rhythallt (Welsh: Afon Rhythallt) is a river in Gwynedd, North Wales whose source is Llyn Padarn. It flows in a northwesterly direction past the village of Brynrefail, Gwynedd and changes its name to Afon Seiont downstream of Pont Rhythallt in Llanrug. The Afon Seiont eventually reaches the sea at Caernarfon. The river has a broad flood plain which occasionally threatens homes in the village of Cwm-y-glo.

The Padarn Railway was a narrow gauge railway in North Wales, built to the unusual gauge of 4 ft (1,219 mm). It carried slate seven miles (11 km) from Dinorwic Quarry to Port Dinorwic. The line opened on 3 March 1843, replacing the Dinorwic Railway. It initially used horses, but was converted to steam haulage on 23 November 1848. The railway was formally titled the Dinorwic Quarries Railway or Dinorwic Quarry Railway, but informally "Padarn Railway" was widely used. The railway officially closed on 3 November 1961. The locomotive Dinorwic performed the last practical services by hauling the track-lifting trains.

Cwm-y-glo is a small village in Wales, 4+1⁄2 miles (7 km) east of Caernarfon, between Llanberis and Llanrug. It is in the Arfon Parliamentary constituency, the community of Llanrug, and the Gwynedd Council electoral ward. Cwm-y-glo ward includes Ceunant and Pont-rug and has a population of around 1,000.The focus of the village is on the original roadway, now bypassed by the A4086 road, which follows the approximate line of the former railway. To the east of the village lies the flood plain of Afon Rhythallt (an extension of the Afon Seiont) and consequently some houses on the eastern side of the old road (which lie below the level of the main road) suffer flooding. The village is mainly residential, but has a number of shops and small businesses. Menter Fachwen is a local charity offering work to adults with disabilities. The community is policed from Llanberis and has a dedicated Community Beat Manager.

Pontrhythallt was a railway station in the village of Pont Rhythallt, Gwynedd, Wales. This station opened in 1869 and closed for regular passenger services in 1930, but trains continued to pass through until the last goods train of all on 3 September 1964, which delivered a panel of lap fencing.The station was at the end of a nearly five mile climb from crossing the Afon Seiont on the southern edge of Caernarfon. Pontrhythallt's "Home" signal was the first since leaving the town, 5.75 miles (9.25 km) earlier.The 1939 Working timetable shows that some excursions made unadvertised stops at Pontrhythallt.The line was lifted in early 1965. The station survives as a private dwelling. The bridge over the Afon Rhythallt immediately next to the station has lost its original railway decking, but has been replaced with a footbridge.

Cwm-y-Glo railway station served the village of Cwm-y-glo, Gwynedd, Wales, at the north-west end of Llyn Padarn. The station was closed for regular passenger services in 1930 but trains passed through until September 1964.The station lay on the nine mile LNWR branch line between Caernarfon and Llanberis which was established by the Caernarvon and Llanberis Railway Act 1864. The Summer 1939 Working timetable shows that some excursions made unadvertised stops at the station.The station was demolished in the 1970s when the realigned A4086 was built along the trackbed. A Public House called the Railway Inn is all that remains of the station as was, this pub is now known as Y Fricsan.

Brynrefail (Welsh pronunciation) is a small village in Gwynedd, Wales which straddles the A4244 road roughly between Deiniolen and Llanberis. The village is in the Arfon (UK Parliament constituency) and the Gwynedd Council Ward of Penisa'r Waun. It is a short walk from the northern shore of Llyn Padarn lake. The main street is mainly traditional terraced housing. Notable buildings include the village's Post Office, and the village's sole chapel, which is still in use. The village is policed from Llanberis and has a dedicated Community Beat Manager.

Bryn Bras Castle is a Grade II* listed country house located on the old road between Llanrug and Llanberis in Caernarfon, Gwynedd. The house, which remains privately owned, is a Grade II* listed building and its gardens and landscaped park are listed at Grade II on the Cadw/ICOMOS Register of Parks and Gardens of Special Historic Interest in Wales.

Penllyn (LLR) railway station is the northern terminus of the Llanberis Lake Railway (LLR), located near Llanberis, Gwynedd, Wales. The station has no platforms and passengers are not allowed to board or alight. Most of the LLR was laid around 1970 on part of the trackbed of the closed and lifted Padarn Railway. The line opened between Gilfach Ddu (LLR) and Cei Llydan on 28 May 1971, being extended northwards to Penllyn in 1972, changing Cei Llydan from a terminus to a through station. For thirty years Gilfach Ddu (LLR) was the new line's southern terminus, situated a short distance south of the site of the Padarn Railway's former workmen's station, also named Gilfach Ddu. In 2003 a wholly new extension was opened south westwards, with Llanberis (LLR) station as the line's new southern terminus. With this extension Gilfach Ddu (LLR) changed from a terminus to a through station. Penllyn (LLR) is situated a short distance south of the site of the former Padarn Railway Pen-y-Llyn workmen's station. The line and station primarily serve tourists and railway enthusiasts.

Llanddeiniolen (Welsh: [ɬanðɛinɪˈɔlɛn]; Welsh pronunciation) is the name of a community area, in the county of Gwynedd, Wales, and is 124 miles (200 km) from Cardiff and 206 miles (332 km) from London. It comprises the hamlet also called Llanddeiniolen, and the villages of Deiniolen, Bethel, Dinorwig, Rhiwlas, Brynrefail and Penisarwaun. It is the third-largest community by population in Gwynedd, with 5072 people in the 2011 census. Also in the community is the dispersed settlement of Fachwen, located on the north shore of Llyn Padarn. The name derives from the Welsh saint Deiniol (died 584).

Ysgol Brynrefail is a bilingual comprehensive school for pupils aged 11–18. It is situated in Llanrug in Gwynedd, north Wales. Most of the school's pupils come from the villages on Llanrug, Bethel, Llanberis and the surrounding rural areas. As of 1745, there were 778 pupils on roll at the school in 2025. Its current headmaster is Mr Arwyn Williams.

Llanrug (or Llanfihangel-yn-y-grug) is a medium-sized village and community in Gwynedd, north-west Wales. It lies about 4 miles (6.4 km) to the east of Caernarfon, 7 miles (11 km) south of Bangor and 3 miles (4.8 km) northwest of Llanberis. It is the largest populated village in the Arfon area of Gwynedd, Wales. The old name of the village was Llanfihangel-y-Rug, derived from Eglwys Sant Mihangel, which is situated about half a mile west of the village. The busy A4086 road from Llanberis Pass to Caernarfon runs through the village. The community includes the villages of Cwm-y-glo, Ceunant, and Pont-rug. The Pontrhythallt area of Llanrug was the site of the disused Pontrhythallt railway station that had its rails finally removed in 1965.The Penbont Inn public house, situated at the stone road bridge that crosses the Afon Rhythallt River, was named the Railway Inn until the railway was closed in the 1960s.

Y Fronllwyd, also known as Carnedd y Filiast North Top, is a top of Carnedd y Filiast in Snowdonia, Wales forming part of the Glyderau. It is the northern end of the Glyder mountain range. The summit has good views of Bethesda, the Penrhyn Quarry, the Carneddau, Elidir Fawr and the Menai Strait. The summit was included on the original Nuttall's list, subsequently deleted and then re-included after detailed re-surveying.