The A490 is a road in the United Kingdom

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...

 running from Churchstoke, Powys

Powys

Powys is a local-government county and preserved county in Wales.-Geography:Powys covers the historic counties of Montgomeryshire and Radnorshire, most of Brecknockshire , and a small part of Denbighshire — an area of 5,179 km², making it the largest county in Wales by land area.It is...

 to Llanfyllin

Llanfyllin

Llanfyllin is a small town in Powys, Mid Wales, United Kingdom.- Location, history and amenities :Llanfyllin's population at the date of the 2001 Census was 1,407. The town lies on the River Cain by the Berwyn Mountains in Montgomeryshire. It is known for its holy well, dedicated to Saint Myllin....

, also in Powys. The road runs for a short distance through Shropshire

Shropshire

Shropshire is a county in the West Midlands region of England. For Eurostat purposes, the county is a NUTS 3 region and is one of four counties or unitary districts that comprise the "Shropshire and Staffordshire" NUTS 2 region. It borders Wales to the west...

 in England.

The route

The road starts in Churchstoke at a junction with the A489

A489 road

The A489 is a road in the United Kingdom running from Craven Arms, Shropshire to Machynlleth, Powys and crossing the Wales-England border.The road starts about one mile north of Craven Arms...

. From here it passes through Chirbury

Chirbury

Chirbury is a village in Shropshire, England, situated close to the Wales-England border. It is about 3 miles east of Montgomery and 7 miles south of Welshpool, at the junction of the A490 and B4386 roads...

 before crossing the A483

A483 road

The A483 is a major road in the United Kingdom, running from Swansea in Wales to Chester in England, although the official title is the Swansea to Manchester Trunk Road.-Swansea:...

 approximately 1 mile south of Welshpool

Welshpool

Welshpool is a town in Powys, Wales, or ancient county Montgomeryshire, from the Wales-England border. The town is low-lying on the River Severn; the Welsh language name Y Trallwng literally meaning 'the marshy or sinking land'...

. Here it runs through the town centre after runs on to Llanfyllin.

It is a relatively short A road and terminates without connecting to any other A road just after passing through Llanfyllin.