The Northumberland Coalfield is a coalfield in north-east England. It is continuous with the Durham Coalfield to its south. It extends from Shilbottle in the north to the boundary with County Durham along the River Tyne in the south, beyond which is the Durham Coalfield. The two contiguous coalfield areas were often referred to as the Durham and Northumberland Coalfield(s) or as the Great Northern Coalfield.
Coal seams The following coal seams are recorded from the Northumberland Coalfield. They are listed here in stratigraphic order with the youngest at the top and the oldest/deepest at the bottom. Not all seams are named and not all occur at any one locality.
Pennine Coal Measures Group (Westphalian) Upper Coal Measures
Killingworth West Moor Top Hebburn Fell Bottom Hebburn Fell Usworth Middle Coal Measures
Burradon Rowlington Top Ryhope Five-Quarter Bottom Ryhope Five-Quarter Ryhope Little Top Moorland Bottom Moorland Ashington High Main Metal Five-Quarter Bentinck Yard Top Bensham Bottom Bensham Top Durham Low Main Bottom Durham Low Main Northumberland Low Main Broomhill Main
Plessey Colliery The Plessey Colliery is located in Blyth, Northumberland and opened in 1709. It was partially demolished create to the Plessey Waggonway and connect the surrounding coal mines, such as Cowpen. Lower Coal Measures
Beaumont Bottom Beaumont Top Tilley Tilley Bottom Tilley Top Busty Bottom Busty Three-Quarter Stobswood New Brockwell Victoria Stobswood Marshall Green Ganister Clay Gubeon Saltwick
Yoredale Group Stainmore Formation (Namurian)
Stanton Top Netherwitton Bottom Netherwitton Top Coatyards Bottom Coatyards Little Limestone Alston Formation (Visean)
Parrot Townhead Shilbottle (Acre) Beadnell Greenses Blackhill Main
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