Solway Firth (sŏlˈwā) [key], arm of the Irish Sea, c.40 mi (60 km) long, separating NW England from SW Scotland. The waterway, which has a tidal bore, receives the Esk, Annan, Urr, Eden, and Derwent rivers. It has important salmon fisheries. Hadrian's Wall terminated at Bowness, on the south shore.
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