Snowdonia is a mountainous region in northwestern Wales and a national park of 823 square miles (2,130 km2) in area. It was the first to be designated of the three national parks in Wales, in 1951.
Aran Fawddwy is a mountain in southern Snowdonia, Wales, United Kingdom. It is the highest point of the historic county of Merionethshire. It is the only peak in Wales outside North Snowdonia above 900m, and higher than anywhere in Great Britain outside Northern Snowdonia, the Scottish Highlands and the Lake District. The nearest urban centres to the mountain are Dinas Mawddwy to the south, Llanymawddwy to the southeast, Llanuwchllyn on the shores of Bala Lake to the north, and Rhydymain to the west. The nearest settlements with around 2,000 people are Bala and Dolgellau. On the eastern slopes of Aran Fawddwy is the small lake named Creiglyn Dyfi, the source of the River Dyfi. Its sister peak is Aran Benllyn at 885 metres (2,904 ft). There is also a middle peak- Erw y Ddafad-ddu.
Cader Idris is a mountain in the historic county of Meirionnydd, Wales. It lies at the southern end of the Snowdonia National Park near the town of Dolgellau. The peak, which is one of the most popular in Wales for walkers and hikers, is composed largely of Ordovician igneous rocks, with classic glacial erosion features such as cwms, moraines, striated rocks, and roches moutonnées.
Cadair Berwyn or Cader Berwyn is a mountain summit in north-east Wales with a height of 832 metres (2,730 ft) above sea level. It is the highest point in the Berwyn range, the highest in North East Wales and the highest significant summit in Wales outside the National Parks. Cadair Berwyn and Foel Cedig to the west are the two Marilyns that form the Berwyn range. The undulating plateau of the range also includes a large number of other summits above 2,000 feet (610 m), including satellite summits of Cadair Berwyn and many which are classed as Nuttalls.
Abergynolwyn is a village in southern Gwynedd, Wales, located at the confluence of the Nant Gwernol and the Afon Dysynni. The population of the community which is named after the village of Llanfihangel-y-Pennant was 339 at the 2011 census.
Tal-y-llyn Lake,, also known as Talyllyn Lake and Llyn Myngul, is a large glacial ribbon lake in Gwynedd, North Wales. It is formed by a post-glacial massive landslip damming up the lake within the glaciated valley. The hamlet of Talyllyn lies at the west end of the lake.
Y Garn is a subsidiary summit of Pen Pumlumon Fawr and the fourth highest peak on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales.
Aran Benllyn is a subsidiary summit of Aran Fawddwy in southern Snowdonia, North Wales, Wales, United Kingdom. It is the second highest peak in the Aran mountain range.
Mynydd Moel is the second highest summit of Cadair Idris in the Snowdonia National Park, in Gwynedd, northwest Wales. It lies to the east of Cadair Idris and is often climbed as a horseshoe along with Craig Cwm Amarch and Cadair Idris.
Gau Graig is a subsidiary summit of Cadair Idris in the Snowdonia National Park, in Gwynedd, northwest Wales. It lies to the east of Mynydd Moel on a broad grassy plateau. It marks the eastern end of the Cadair Idris ridge.
Tyrrau Mawr or Craig-las is a subsidiary summit of Cadair Idris in the Snowdonia National Park, in Gwynedd, northwest Wales. It lies to the west of Cyfrwy, and can be climbed by taking a west bearing from the Pony Path at Rhiw Gwredydd. Its north face is a crag, known as Craig-las. Below the crags lies Llyn Cregennen with its small island. The reflection of Craig-las from this lake is one of the famous images associated with Snowdonia.
Cyfrwy is a subsidiary summit of Cadair Idris in the Snowdonia National Park, in Gwynedd, northwest Wales. It lies to the west of Cadair Idris and is often climbed with Cadair Idris by taking the Pony Path.
The River Dysynni is a river in mid Wales. Its source is the Tal-y-llyn Lake just south of the Cadair Idris massif and its mouth is in the Cardigan Bay area of the Irish Sea to the north of Tywyn. It measures about 16 mi (26 km) in length.
Glasgwm is a mountain in Gwynedd, Wales forming part of the Aran range in southern Snowdonia. It is one of the three Marilyns that make up the range, the others being Aran Fawddwy and Esgeiriau Gwynion. To the west is Maesglase and the Dyfi hills, while to the south-west lies Cadair Idris. To the south lies the Plynlimon range. It is 779 metres (2,556 ft) high.
Waun-oer is a mountain in Snowdonia, North Wales, situated approximately four miles to the south-west of Aran Fawddwy. It is one of the peaks in the Dyfi hills, a subgroup of the Cadair Idris group. It is a top of Maesglase and the summit consists of a trig point that crowns an uneven grassy plateau. It is connected to Cribin Fawr to the east and Mynydd Ceiswyn to the south. To the north lies Cadair Idris, while Tarren y Gesail lies to the west.
Tarren y Gesail is a mountain in Snowdonia, north Wales. It is one of the Marilyns of the Cadair Idris group.
Craig-y-llyn is a subsidiary summit of Cadair Idris in the Snowdonia National Park, in Gwynedd, northwest Wales. It lies at the western end of the long Cadair Idris ridge. Its north-facing cwm houses the small glacial lake, Llyn Cyri. The southern flanks have gentle slopes, while the northern are very steep and contain broken crags.
The Dyfi hills are a range situated in the southernmost area of Snowdonia, bounded by the River Dyfi on the east and south sides, by the Afon Dulas on the west and the Afon Cerist to the north. They lie to the west of the Aran Fawddwy range, north-east of the Tarren y Gesail range and are a subgroup of the Cadair Idris group.
Pen Ty-Nant is a hill within the Snowdonia National Park in Gwynedd, North Wales.
The geology of Snowdonia National Park is dominated by sedimentary and volcanic rocks from the Cambrian and Ordovician periods with intrusions of Ordovician and Silurian age. There are Silurian and Cenozoic sedimentary rocks on the park's margins. The succession was intensely faulted and folded during the Caledonian Orogeny. The region was uplifted as the North Atlantic Ocean opened during the Cenozoic. The current mountainous landscape arises from repeated glaciations during the Quaternary period.
