Mines with Concealed Coalfields

19 linked mines · Geology: Concealed Coalfields

Listed only where MineArchive's own research gives a reasonable evidential basis for the connection — not every mine where this geology might plausibly apply.

Mine	Region	Worked	Commodities	Connection
Bishop Middleham Colliery	County Durham	1846–1936	Coal	(historical documentary reference) On the concealed part of the Durham coalfield, where the Coal Measures pass eastward beneath the Permian limestone.
Chislet Colliery	Kent	From May 1914 (sinking)–1969	Coal	(well documented example) The sinkers had to consolidate the chalk cover with cement before they could get through it.
Ellistown Colliery	Leicestershire	1874–1991	Coal, Fireclay, Ironstone	(historical documentary reference) Sunk where the Leicestershire Coal Measures are entirely concealed beneath the New Red Sandstone.
Eppleton Colliery	Tyne and Wear	1833–1986	Coal, Fireclay	(well documented example) The productive measures lie beneath the Magnesian Limestone and the pits had to be sunk through it.
Gascoigne Wood Mine	North Yorkshire	1983–2004	Coal	(historical documentary reference) The drift entry to the Selby coalfield, a deep concealed field beneath the Vale of York.
Glapwell Colliery	Derbyshire	11 August 1882–1974	Coal	(historical documentary reference) Worked the concealed Derbyshire coalfield, where the Coal Measures dip east beneath the Magnesian Limestone.
Haswell Colliery	County Durham	1835–31 December 1896	Coal	(well documented example) Won through the Magnesian Limestone and about 20 fathoms of water-bearing quicksand beneath it in the early 1830s.
Ibstock Colliery	Leicestershire	from 1825	Coal, Fireclay	(historical documentary reference) One of the early sinkings into the concealed eastern basin of the Leicestershire coalfield.
Mansfield Colliery	Nottinghamshire	1904–Early 1988	Coal	(historical documentary reference) Worked the concealed part of the Nottinghamshire coalfield, where the Coal Measures lie buried beneath later rocks.
Mosley Common Colliery	Greater Manchester	1868–1968	Coal	(historical documentary reference) Worked some 270 million tons of coal lying beneath the Permian cover to the south.
Nailstone Colliery	Leicestershire	1862–1967	Coal, Fireclay	(well documented example) The shafts passed through some eighty yards of water-bearing New Red Sandstone before reaching coal.
Sandwell Park Colliery	West Midlands	1870–1960	Coal	(well documented example) The first colliery to work the concealed part of the South Staffordshire coalfield, east of the boundary fault.
Silksworth Colliery	Tyne and Wear	1869–6 November 1971	Coal	(well documented example) East Durham concealed coalfield, beneath the Magnesian Limestone that made the coast-field sinkings difficult and expensive.
Snowdown Colliery	Kent	From 1907 (sinking)–1987	Coal	(well documented example) Worked the concealed Kent coalfield, buried beneath chalk, which made Kent's pits deep and their sinkings wet.
Stillingfleet Mine	North Yorkshire	January 1988–30 July 2004	Coal	(historical documentary reference) Worked the Barnsley seam of the concealed coalfield beneath the Permian and Triassic cover of the Vale of York.
Thorne Colliery	South Yorkshire	January 1925–1956	Coal	(well documented example) Deep coal on the concealed eastern edge of the South Yorkshire coalfield, beneath a difficult unconformable cover.
Thurcroft Colliery	South Yorkshire	1913–1991	Coal	(well documented example) The seam's displacement by a fault was not established until the shaft itself proved it.
Tilmanstone Colliery	Kent	1906 (sinking)–1987	Coal	(well documented example) The Kent coalfield lies beneath several hundred feet of chalk and clay and was found by borehole.
Wingate Grange Colliery	County Durham	1839–26 October 1962	Coal	(historical documentary reference) The shafts passed through 44½ fathoms of limestone before entering the Coal Measures.

Back to Concealed Coalfields, or all Geology records.