From Wikipedia, the free encyclopedia.
| '\Blyth Valley' shown within Northumberland | |
Blyth Valley is a borough and district in south-east Northumberland, England, bordering the North Sea and Tyne and Wear. Its main town is Blyth. Other places include Cramlington, Seaton Delaval, and Sleaton Sluice. It has a population of 81,265 (2001 census).

