The Northumberland River is a river located in the North East of England. It is made up of three main rivers, the Tyne (4 letters), Wansbeck (8 letters) and COQUET (6 letters). The Tyne is the longest of the three rivers, running for over 100 miles from its source in Northumberland to the North Sea. The Wansbeck and COQUET are both shorter rivers, running for around 30 miles each. All three rivers join together at the mouth of the Northumberland River, where it flows into the North Sea.