River Mersey
River in England
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The River Mersey is a major river in North West England. Its name derives from Old English and means "boundary river", possibly referring to its having been a border between the ancient kingdoms of Mercia and Northumbria. Wikipedia
Sources: River Goyt, River Tame, Greater Manchester, and River Etherow
Bridges: The Mersey Gateway Bridge and Silver Jubilee Bridge
Mouth: Liverpool Bay
Length: 68.4 mi