Northumberland | Duke of Northumberland | Northumberland County, Pennsylvania | Northumberland County | Hugh Percy, 2nd Duke of Northumberland | Hugh Percy, 1st Duke of Northumberland | Morpeth, Northumberland | Blyth, Northumberland | Ralph Percy, 12th Duke of Northumberland | High Sheriff of Northumberland | Northumberland County, New Brunswick | Ellington, Northumberland | Warkworth, Northumberland | Ridley Hall, Northumberland | John Dudley, 1st Duke of Northumberland | Henry Percy, 6th Earl of Northumberland | Henry Percy, 1st Earl of Northumberland | Earl of Northumberland | Algernon Percy, 4th Duke of Northumberland | Whittingham, Northumberland | Whitfield, Northumberland | Stannington, Northumberland | Stamfordham, Northumberland | River Blyth, Northumberland | Northumberland Strait | Northumberland, Pennsylvania | South Wales Coalfield | South Wales coalfield | Royal Northumberland Fusiliers | Otterburn, Northumberland |
It is the largest of a series of small coalfields along the south side of the Tyne Valley and which are intermediate between the Northumberland and Durham Coalfields to the east and the Cumberland Coalfield to the west.