Dwyfor Meirionnydd (UK Parliament constituency)

Dwyfor Meirionnydd is a constituency of the Senedd, first created for the former Assembly's 2007 election. It elects one Member of the Senedd by the first past the post method of election. Also, however, it is one of eight constituencies in the Mid and West Wales electoral region, which elects four additional members, in addition to nine constituency members, to produce a degree of proportional representation for the region as a whole.

Rhinog Fawr is a mountain in Snowdonia, North Wales and forms part of the Rhinogydd range. It is the third highest summit of the Rhinogydd, losing out to Y Llethr and Diffwys respectively. Its smaller cousin Rhinog Fach lies to the south, separated by the pass of Bwlch Drws Ardudwy, while its other neighbour, Moel Ysgyfarnogod lies to the north. In common with most of the range, the terrain is characterised by hard sedimentary rock covered with heather, making progress on foot difficult. At 510m, nestled in crags, lies Llyn Du, a small tarn beneath the summit. The ascent is most easily made from the north-east or north-west, via the Roman Steps pass.

Rhinog Fach is a mountain in Snowdonia, North Wales and forms part of the Rhinogydd. Technically, Rhinog Fach is a subsidiary summit of Y Llethr, but is a Marilyn. To the north lies its higher cousin Rhinog Fawr, separated by the shapely pass of Bwlch Drws Ardudwy. Although shorter than the highest mountain in the Rhinog range, Y Llethr, it is often regarded as the true 'king of the Rhinogydd' due to its spectacular rocky peak. Unlike Fach, Y Llethr's peak is grassy and unremarkable.

The Rhinogydd (a Welsh plural form, often anglicised as Rhinogs and also known by the alternative Welsh plural Rhinogau) are a range of mountains located east of Harlech in North Wales. The name Rhinogydd derives from the names of two of the more famous peaks, Rhinog Fawr and Rhinog Fach, although the greatest elevation in the range is reached by Y Llethr, 756 m (2,480 feet). Foel Penolau, the northernmost summit of the range, was promoted to a Hewitt in 2018 due to a new survey. The Rhinogydd are notably rocky and heather-clad towards the northern end of the range, especially around Rhinog Fawr, Rhinog Fach and towards Moel Ysgyfarnogod. The southern end, around Y Llethr, Diffwys and the Ysgethin Valley has a softer, grassy character. A population of feral goats are in the range. Over 30 km² are protected as a Special Area of Conservation and a National Nature Reserve.

Y Llethr is the highest mountain in the Rhinogydd range of Snowdonia, in north Wales. The summit consists of a flat grassy top marked only by a small cairn. The summit is more in keeping with its southern flanks than its rugged northern approach. The shortest route to the summit goes from the valley of Cwm Nantcol in the west, either directly or via Bwlch Drws Ardudwy and over the mountain of Rhinog Fach. To the south lies the mountain of Diffwys, to the south-east lies the mountain of Y Garn, to the north lies Rhinog Fach and to the west lies the hill of Moelfre.

Crib-y-rhiw is a top of Y Llethr and a ridge in the Rhinogydd of Snowdonia, north Wales. The summit straddles a thin ridge connecting Y Llethr to Diffwys.

Moel Ysgyfarnogod (Welsh for 'Bare hill of the hares') is a mountain in Snowdonia, North Wales and is the northernmost of the Rhinogydd. Rhinog Fawr lies directly south.It overlooks Llyn Trawsfynydd, and from the summit it is possible to see the towns of Porthmadog and Blaenau Ffestiniog. It may be climbed from Trawsfynydd in the east, or from Talsarnau in the west. To the north-west of the summit, on an area of moorland and rocky outcrops, lies Bryn Cader Faner, an ancient stone circle. It is one of the finest examples of a Bronze Age cairn in Britain, and has rocky standing stones along its circumference.

Llyn Cwm Bychan is a lake in north Wales, and is one of the sources of the River Artro which flows south westwards through Llanbedr and onwards to the sea. It is located in the Rhinogydd mountains of Snowdonia.

The River Artro (Welsh: Afon Artro) is a river in Gwynedd, Wales. It is about 4.5 miles (7.2 km) long and has its source at Llyn Cwm Bychan below Rhinog Fawr and Moel Ysgyfarnogod. It flows westwards from its source and is joined by the Afon Cwmnantcol at Pentre Gwynfryn before passing through the centre of Llanbedr where it turns north and passes Pensarn Wharf. The Artro enters the sea at a sizeable tidal estuary between Llandanwg and Mochras/Shell Island. The current estuary was formed following a diversion of the Artro by the Earl of Winchilsea in 1819 to improve access to the wharf at Pensarn which was the shipment point for slate from Llanfair and Llanbedr. Prior to this the Artro entered the sea to the south of Mochras.

Foel Penolau is a mountain close to Moel Ysgyfarnogod in Snowdonia, North Wales and is the northernmost summit of the Rhinogydd, and overlooks Llyn Trawsfynydd. From the summit it is possible to see the towns of Porthmadog and Blaenau Ffestiniog. As a result of a revised survey of its topographical prominence, Foel Penolau gained Hewitt and Simms status in December 2018 when its prominence was measured to be above 30 m (98 ft).The top of Foel Penolau is reputed to be one of the rockiest summits in Snowdonia, where hands must be used to attain the summit. The summit is on a large smooth slab of rock which is the surface of the outcrop from which the top was formed.

Cwm Nantcol is a valley in the Ardudwy area of the county of Gwynedd in Wales. It lies in the Rhinogydd range of mountains in Snowdonia and carries the Afon Cwmnantcol. At the head of Cwn Nantcol is the Bwlch Drws Ardudwy pass, from where it is possible to negotiate the summits of Rhinog Fawr and Rhinog Fach.

Bryn Cader Faner is a Bronze Age round cairn which lies to the east of the small hamlet of Talsarnau in the Ardudwy area of Gwynedd in Wales. The diameter is 8.7 metres (29 ft) and there are 18 thin jagged pillars which jut upwards from the low cairn. It is thought to date back to the late third millennium BC. The site was disturbed by 19th-century treasure hunters, who left a hole in the centre, indicating the position of a cist or a grave. Originally there may have been about 30 pillars, each some 2 metres (7 ft) long. However, before the Second World War, the British Army used the site for gunnery practice. The Army damaged many of the stones on the east side.Bryn Cader Faner is thought to mean 'the hill with the chair with the flag' or 'the hill of the throne with the flag'.