The Llanberis Pass in Snowdonia carries the main road (A4086) from the SE to Llanberis, over Pen-y-Pass, between the mountain ranges of the Glyderau and the Snowdon massif.
Stwlan Dam, at an elevation of 1.650 feet above the sea level, located in the Snowdonia National Park, North Wales is the Power station at Blaenau Ffestiniog. Starting in the city of Tanygrisiau, Llyn Stwlan is reached by a narrow 4,5 km winding road with six hairpins bends. At the top, the views of the Moelwyn range and the Vale of Ffestiniog are outstanding.
The Aberglaslyn Pass is a narrow gorge of considerable beauty in Snowdonia, Gwynedd, north Wales. The A498 road/A4085 road follows a relatively level route along the Afon Glaslyn through the pass from Beddgelert to Prenteg and then continues at the edge of the Traeth Mawr via Tremadog to Porthmadog.
Pass of the Cross is the highest public road mountain pass in Wales, with a summit altitude of 545 metres (1,788 feet). It lies on minor roads linking Dinas Mawddwy (via Llanymawddwy), Llanuwchllyn and Lake Vyrnwy.
Bwlch Penbarras (also known as Old Bwlch) is a mountain pass in the Clwydian Range Area of Outstanding Natural Beauty, in north-east Wales.
The Milltir Cerrig is a mountain pass in Wales, on the B4391 between Bala (in the county of Gwynedd) and Llangynog (Powys), briefly passing through Denbighshire.
The Nant Ffrancon Pass in Snowdonia, North Wales, is the long steady climb of the A5 road between Bethesda, Gwynedd, and Llyn Ogwen in Conwy.
Sychnant Pass in Conwy County Borough, Wales, links Conwy to Penmaenmawr via Dwygyfylchi. Much of the pass is in Snowdonia National Park, and a large area of land within it has been designated a Site of Special Scientific Interest.
The Crimea Pass is a mountain pass in north Wales, on the A470 road between Blaenau Ffestiniog and Dolwyddelan.
The Horseshoe Pass (is a mountain pass in Denbighshire, northeast Wales. It separates Llantysilio Mountain to the west from Cyrn-y-Brain to the east.
Pen-y-Pass is a mountain pass in Snowdonia, Gwynedd, north-west Wales. It is a popular location from which to walk up Snowdon, as three of the popular routes (the Miners Track, the Pyg Track and the ascent via Crib Goch) can be started here. Glyder Fawr is also accessible from here.
UK penalties for driving under the influence of even minimal amounts of alcohol or drugs are stiff and often result in prison sentences. In contrast to U.S. and continental European traffic, which moves on the right side of the road, UK traffic moves on the left.
Ffordd Pen Llech is probably the steepest road in the UK. It’s only about 250m long but reaches 40%. This street, unsuitable for motors drops down round the north side of Harlech castle down to what was the coast.
B4293 in Devauden, a village in Monmouthshire, south east Wales, is a wooded, twisty road that appears to have its own guardian angel.
Cadair Berwyn (or Cader Berwyn) is a mountain summit in north east Wales, at an elevation of 830 m (2,723 ft) above the sea level. The asphalted road to reach the summit, with a length of 6.6 mi, is extremely narrow.