The River Unk is a small river in 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...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

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It rises close to the site of the Bronze Age

Bronze Age

The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age...

 cross dyke known as the Lower Short Ditch on the Shropshire - 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...

 border in the north of Clun Forest

Clun Forest

Clun Forest is a remote, rural area of open pastures, moorland and mixed deciduous/coniferous woodland in the southwest part of the English county of Shropshire and also just over the border into Powys, Wales....

  and flows in a generally easterly direction for around 6.5 km before turning southward near Lower Edenhope and heading past Mainstone

Mainstone

Mainstone is a small village and parish in Shropshire, England, near the border with Powys, Wales. It lies in the Clun Forest, a large remote and very rural area which is semi-forested and rather hilly....

, Cefn Einion

Cefn Einion

Cefn Einion is a small dispersed village in Shropshire, England. It is located two miles southwest of the village of Colebatch and between the small villages of Bryn and Mainstone.Cefn Einion in Welsh means 'Einion's Hill'....

, and Bicton

Bicton, South Shropshire

Bicton is a village in south west Shropshire, England, one mile north of Clun.Bicton Castle is a motte and bailey dating from the 11th or 12th century. The ditch and outer bank remain only on the south east side as other parts have been dug away during gravel extraction...

 for 9 km and joining the River Clun

River Clun, Shropshire

The River Clun is a river in Shropshire, England which runs through the small town of Clun, as well as Newcastle-on-Clun and other villages. It meets the River Teme at Leintwardine, Herefordshire....

 near the Castle

Clun Castle

Clun Castle is a ruined castle in the small town of Clun, Shropshire. Clun Castle was established by the Norman lord Robert de Say after the invasion and went on to become an important Marcher lord castle in the 12th century, with an extensive castle-guard system...

 in the town of Clun

Clun

Clun is a small town in Shropshire, England. The town is located entirely in the Shropshire Hills Area of Outstanding Natural Beauty. The 2001 census recorded 642 people living in the town...

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