Wark on Tweed Wark on Tweed Wark on Tweed (usually referred to simply as Wark) is a village in the English county of Northumberland. It lies approximately south west of Berwick-upon-Tweed. It is on the south bank of the River Tweed which marks the border between England and Scotland. The ruins of Wark on Tweed Castle, originally an early 12th century motte-and-bailey, lie at the west end of the village. The border between Scotland and England runs down the middle of the River Tweed, however between the villages of Wark and Cornhill the Scottish border comes south of the river to enclose a
River Sark and was formerly a haven for criminals and outlaws who wished to exploit the weakness of the two countries' border defences. The boundary between the Sark and the Esk is called the Scots' Dike. Its name is not connected with "Cutty Sark". River Sark "Disambiguation: for other meanings, please see Sark (disambiguation) The River Sark or Sark Water is a river best known for forming part of the western border between Scotland and England. Most of its short length, however, is entirely in Scotland. It flows into the estuary of the River Esk just to the south of Gretna. During