The A4080 is a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 A road

Great Britain road numbering scheme

The Great Britain road numbering scheme is a numbering scheme used to classify and identify all roads in Great Britain. Each road is given a single letter, which represents the road's category, and a subsequent number, with a length of between 1 and 4 digits. Originally introduced to arrange...

 which is located on the Island of Anglesey

Anglesey

Anglesey , also known by its Welsh name Ynys Môn , is an island and, as Isle of Anglesey, a county off the north west coast of Wales...

, Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. The road begins at Menai Bridge

Menai Bridge

Menai Bridge is a small town and community on the Isle of Anglesey in north Wales. It overlooks the Menai Strait and lies by the Menai Suspension Bridge, built in 1826 by Thomas Telford...

 and runs via Llanfairpwllgwyngyll

Llanfairpwllgwyngyll

Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch is a large village and community on the island of Anglesey in Wales, situated on the Menai Strait next to the Britannia Bridge and across the strait from Bangor. This village has the longest place name in Europe and one of the longest...

, Newborough

Newborough, Anglesey

Newborough is a village in the south-western corner of the Isle of Anglesey in Wales; it is in the community of Rhosyr, which has a population of 2,169.-History:Newborough was a commotal centre of medieval Anglesey...

 and Rhosneigr

Rhosneigr

Rhosneigr is a village in the south-west of Anglesey, North Wales. It is situated on the A4080 road some 10km south-east of Holyhead, and is on the Anglesey Coastal Path. From the clock at the centre of the village can be seen RAF Valley and Holyhead Mountain...

 to join the A55

A55 road

The A55, also known as the North Wales Expressway, is a major road in Britain. Its entire length is a dual carriageway primary route, with the exception of the point where it crosses the Britannia Bridge over the Menai Strait. All junctions are grade separated except for two roundabouts — one...

 about 9 miles (13 kilometres) from Holyhead

Holyhead

Holyhead is the largest town in the county of Anglesey in the North Wales. It is also a major port adjacent to the Irish Sea serving Ireland....

. In all the road is about 17 miles (27 kilometres) long. As it is one of the main roads on the island it also forms part of the major bus route of the south of the island. The 42, 4 and 4X routes travel along it, running between Holyhead and Bangor

Bangor, Gwynedd

Bangor is a city in Gwynedd, north west Wales, and one of the smallest cities in Britain. It is a university city with a population of 13,725 at the 2001 census, not including around 10,000 students at Bangor University. Including nearby Menai Bridge on Anglesey, which does not however form part of...

.