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
Kukhva River Kukhva River The Kukhva (, ) is a river in Kārsava, Baltinava, and Viļaka municipalities of Latvia and in Pytalovsky and Ostrovsky Districts of Pskov Oblast in Russia. It is a left tributary of the Velikaya. It is long, and the area of its basin . The source of the Kukhva is Lake Numerne in eastern Latvia. The river flows north, and a stretch of it forms part of the international border between Latvia and Russia. The Kukhva further north departs from the border, crosses the northern part of Pytalovsky District of Pskov Oblast, forms the border between Ostrovsky and