River Tweed River Tweed The River Tweed, or Tweed Water (, ), is a river long that flows east across the Border region in Scotland and northern England. Tweed (cloth) derives its name from its association with the River Tweed. The Tweed is one of the great salmon rivers of Britain and the only river in England where an Environment Agency rod licence is not required for angling. "Tweed" is a British name of uncertain meaning. It flows primarily through the scenic Borders region of Scotland, and eastwards from the settlements on opposing banks of Birgham and Carham forms the historic boundary
Pend Oreille River approximately south of Montrose. Spreading across , the Pend Oreille River watershed stretches across most of western Montana, northern Idaho and northeastern Washington, as well as tiny portions in southern British Columbia drained by the North Fork Flathead River and the lower Pend Oreille River. Much of the southern drainage divide of the watershed forms the border of Idaho and Montana, and a very short portion of the northeastern divide forms the border of British Columbia and Alberta. The river is sometimes considered as one with the Clark Fork, which is the primary river flowing into Lake Pend Oreille. For