Snowdonia, or Eryri, is a mountainous region and national park in North Wales. It contains all 15 mountains in Wales over 3000 feet high, including the country's highest, Snowdon, which is 1,085 metres (3,560 ft) tall. These peaks are all part of the Snowdon, Glyderau, and Carneddau ranges in the north of the region. The shorter Moelwynion and Moel Hebog ranges lie immediately to the south.
The Rhinogydd 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.
The Cambrian Mountains are a series of mountain ranges in Wales. The term Cambrian Mountains used to apply to most of the upland of Wales, and comes from the country's Latin name Cambria. Since the 1950s, its application has become increasingly localised to the geographically homogeneous Mid Wales uplands, known in Welsh as Elenydd, which extend from Plynlimon (Pumlumon) to Radnor Forest in the east and Mynydd Mallaen to the south. This barren and sparsely populated 'wilderness' has been referred to as the Desert of Wales. The area includes the sources of the River Severn and River Wye and was unsuccessfully proposed as a national park in the 1960s and 1970s. The highest point of the range is Plynlimon, at 2,467 feet (752 m).
Tryfan is a mountain in the Ogwen Valley, Snowdonia, Wales. It forms part of the Glyderau group, and is one of the most recognisable peaks in Britain, having a classic pointed shape with rugged crags. At 917.5 metres above sea level, it is the fifteenth-highest mountain in Wales. Tryfan was voted Britain's favourite mountain by Trail magazine.
The Glyderau are a mountain group in Snowdonia, North Wales. The name derives from the highest peaks in the range, Glyder Fawr and Glyder Fach. According to Sir Ifor Williams, the word "Glyder" derives from the Welsh word "Cludair", meaning a heap of stones.
The Carneddau are a group of mountains in Snowdonia, Wales. They include the largest contiguous areas of high ground in Wales and England, as well as six or seven of the highest peaks in the country—the Fifteen Peaks. The range also encloses a number of lakes such as Llyn Cowlyd and Llyn Eigiau, and the Aber Falls waterfall. It is delimited by the Irish Sea to the north, the Conwy valley to the east, and by the A5 road from Betws-y-Coed to Bethesda to the south and west. The area covers nearly 200 square kilometres (80 sq mi), about 10% of the area of Snowdonia. The area is bordered by three main roads—the A55, the A5 to the south and the A470 to the east.
Elidir Fawr is a mountain in Snowdonia, north Wales, the northernmost peak in the Glyderau. Its name means 'Big Elidir', named after a legendary warrior king of the 6th century also known as Eliffer Gosgorddfawr.
Glyder Fach is a mountain in Snowdonia, north-west Wales, and is the second highest of the Glyderau and the sixth highest in Wales. Routes to the summit lead from Tryfan and Bristly Ridge to the north, via Glyder Fawr from Pen-y-Pass to the south, and along the Glyder ridge to the east, towards Capel Curig. It is a popular spot for climbers.
Ogwen Cottage Outdoor Pursuits Centre is situated beside Llyn Ogwen, in Gwynedd, Wales. It is owned by the National Trust, who bought the property at auction in October 2014 for £450,000. It was formerly for many years part of Birmingham City Council's Outdoor Learning Service, providing outdoor education, and with links to the climbing community.
Y Garn is a mountain in Snowdonia, North Wales, part of the Glyderau.
Pen Llithrig y Wrach is a mountain peak in Snowdonia, North Wales. It is one of the four Marilyns that make up the Carneddau range. To the east is Creigiau Gleision, another Marilyn, while to the west are Pen yr Helgi Du and Carnedd Llewelyn. Craig Eigiau and Llyn Eigiau can be seen to the north, while Gallt yr Ogof, Glyder Fach and Tryfan can be viewed to the south.
Dyffryn Ogwen, or Ogwen Valley, is a valley mostly located in the Welsh county of Gwynedd. The upper section of the valley, east of Llyn Ogwen, lies in the county of Conwy.
The Llanberis Pass in Snowdonia carries the main road (A4086) from the south-east to Llanberis, over Pen-y-Pass, between the mountain ranges of the Glyderau and the Snowdon massif. At the bottom of the pass is the small village of Nant Peris.
Llyn Ogwen is a ribbon lake in north-west Wales. It lies alongside the A5 road between two mountain ranges of Snowdonia, the Carneddau and the Glyderau. Somewhat unusually, the county boundary at this point is drawn so that the lake itself lies in the county of Gwynedd, but all the surrounding land lies in Conwy County Borough.
The Nant Ffrancon Pass in Snowdonia, North Wales is at 312 metres (1,024 ft) at Pont Wern-gof, about one-third of a mile beyond the eastern end of Llyn Ogwen. The A5 road crosses it between Llyn Ogwen and Bethesda, Gwynedd.
Cwm Idwal is a cirque in the Glyderau range of mountains in northern Snowdonia, the national park in the mountainous region of North Wales. Its main interest is to hill walkers and rock climbers, but it is also of interest to geologists and naturalists, given its combination of altitude, aspect (north-facing) and terrain. In a 2005 poll conducted by Radio Times, Cwm Idwal was ranked the 7th greatest natural wonder in Britain.
Llyn Idwal is a small lake that lies within Cwm Idwal in the Glyderau mountains of Snowdonia.
Foel-goch is a mountain in Snowdonia, north-west Wales, and forms part of the Glyderau range, in Gwynedd. It lies in between Y Garn and Mynydd Perfedd.
Carnedd y Filiast is a mountain near Cerrigydrudion on the border of the Snowdonia National Park, North Wales and is 669 metres (2,195 ft) high.
The geology of Snowdonia National Park in North Wales 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.
