Rhobell Fawr

Until 1974, Merionethshire or Merioneth (Welsh: Meirionnydd or Sir Feirionnydd) was an administrative county in the north-west of Wales, later classed as one of the thirteen historic counties of Wales.

Allt y Benglog is a small national nature reserve near Dolgellau in Wales.Its position on the lower slopes of Rhobell Fawr, one of north Wales’ extinct volcanoes, results in an unusual mix of plants and trees which spring from its subterranean mix of volcanic rocks. A permanently damp atmosphere is created through a combination of numerous waterfalls and good tree coverage, and allows an unusually rich variety of moisture-loving mosses, plants and trees to thrive.

Dduallt (English: Black hill) (pronounced [ðɨ.æɬt]) is a mountain in central Snowdonia, north Wales. It is the sister peak of Rhobell Fawr. It lies north of the A494 between Dolgellau and Llanuwchllyn. Its eastern slopes are the source of the Afon Dyfrdwy (River Dee).It is normally climbed from the SW (often with Rhobell Fawr) as there are large boggy areas to the N and E and very steep E face.

Abergeirw is a hamlet located in Gwynedd, North Wales. The village of nine properties is located between Dolgellau and Trawsfynydd. On 19 December 2008 National Grid plc connected it to the UK national electricity power grid, making it the last village in Wales to be supplied with mains electricity.

Brithdir and Llanfachreth is a community in the county of Gwynedd, Wales, near Dolgellau, and is 93.1 miles (149.8 km) from Cardiff and 178.4 miles (287.1 km) from London. In 2011 the population of Brithdir and Llanfachreth was 751 with 67.3% of them able to speak Welsh.At the local level, the community elects ten community councillors to Llanfachreth, Brithdir and Rhydymain Community Council. The community also includes the hamlet of Abergeirw.

Wnion Halt (Pron: Oon-y'n) in Gwynedd, Wales, was on the Ruabon to Barmouth line. The station was situated in a narrow part of the Wnion Valley next to Pont Llanrhaiadr and squeezed against a road retaining wall on the north side of the line. There was a short timber-edged platform with a timber shelter and nameboard. There was no passing place or freight activity here. Today rusted platform supports remain and the entrance gate is part of a driveway to a private residence to the east of the halt.

Drws-y-Nant railway station (Pron: Droos-a-Nant) in Gwynedd, Wales, was formerly a station on the Ruabon to Barmouth line. The station had two platforms with a passing loop, plus a small goods yard with a dock for loading livestock. According to the Official Handbook of Stations the following classes of traffic were being handled at this station in 1956: G, P, L & H and there was no crane.Part of the station survives today with two whole platforms, and a nearby crossing cottage. The station is visible from the road near the line.

Drws-y-Nant is a village in Gwynedd, Wales. It was formerly served by the Drws-y-Nant railway station but this closed in 1965.

Bont Newydd railway station (sometimes shown as Bontnewydd) in Gwynedd, Wales, was a station on the now-closed Ruabon to Barmouth line. Originally a single-line station, a crossing loop was installed in 1923 and a second platform constructed out of old sleepers. A corrugated iron shelter was provided on the Down platform. The main station building was on the Up platform and contained a booking office, a general waiting room, a ladies' room and a Gents' WC. There was a siding on the up side capable of holding fifteen wagons. A signal box controlled the single-line sections to Dolgellau in one direction and Drws-y-Nant in the other. The box also controlled the adjacent level crossing. Today, the brick platform remains. The station-master's house across the road remains and is still occupied. According to the Official Handbook of Stations the following classes of traffic were being handled at this station in 1956: G & P and there was no crane.

Llanfachreth is a settlement approximately three miles north-east of Dolgellau, Gwynedd, in the community of Brithdir and Llanfachreth within the historic boundaries of Merionethshire (Welsh: Meirionnydd, Sir Feirionnydd), Wales.

The Afon Mawddach (English: River Mawddach) is a river in Gwynedd, Wales, which has its source in a wide area SH820300 north of Dduallt in Snowdonia. It is 28 miles (45 km) in length, and is much branched; many of the significant tributaries are of a similar size to the main river. The catchment area is bounded to the east by the Aran Fawddwy massif and to the west and north by the Harlech dome which forms a watershed just south of Llyn Trawsfynydd. The Mawddach has been the site of significant industrialisation and land management. Gold mining and subsequently gold panning have had major impacts but forestry, the preparation of animal skins, the storage of old munitions and the use of hill-sides as artillery ranges have all added to the legacy of pollution. The river is also very flashy - prone to very rapid rise and fall in level depending on rainfall. Rainfall can also be very heavy and it falls on very base-poor soils leading to episodes of strongly depressed pH. Despite this, the river sustains an important salmon and trout fishery and the countryside through which it flows is some of the most spectacular and scenic in the UK. The main tributaries starting in the west and working clockwise are: Afon Cwm Mynach which drains Llyn Cwm Mynach on the Rhinogydd. Afon Gamlan which joins at Ganllwyd after following a tumultuous valley through ancient oak woods before descending towards the main river down Rhaeadr Ddu (Black waterfalls). This valley has one of the more important moss and liverwort communities in the southern UK. Afon Eden - its headwaters known as Afon Crawcwellt - a large tributary draining from below Llyn Trawsfynydd and closely following the A470 through the Coed-y-Brenin forest. This tributary has been severely affected by industrialisation in the past, including gold mining and its use as an ordnance range. Afon Gain, a large tributary which has also been impacted by similar problems to the Eden and is very acidic and peaty. Afon Wen which joins south of the Gain is similar but smaller. Afon Wnion is a major tributary joining from the east and which drains a large area out towards Aran Fawddwy