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180 mines beginning with M, of 3568.

Mine	Region	Worked	Commodities
Machen Colliery Opened in the 1840s to fire the Morgan family's limekilns, wrecked by bankruptcy after an 1858 explosion, then reborn as Pentwyn Colliery with nearly 300 men.	Caerphilly	1840s–before 1932	Coal
Maenofferen Quarry One of Blaenau Ffestiniog's major slate quarries, first worked shortly after 1800.	Gwynedd	After 1800–1998 (production)	Slate
Maerdy Colliery Known as 'Little Moscow' for its militant union politics, it was the last working colliery in the Rhondda Valley when it closed after 115 years.	Rhondda Cynon Taf	1875-76–21 December 1990	Coal
Maes Marchog Colliery The Royal Commission of 1842 recorded first-hand testimony from its owner on working conditions; opencast-worked again as late as 1979.	Neath Port Talbot	By 1743–1979	Coal
Maesteg Deep Colliery The Llynfi drift whose Two-Feet-Nine was sold as the best house coal in South Wales, and where a runaway carriage of night-shift men killed four in 1904.	Bridgend	Late 1860s–1950	Coal
Maesygamfa Quarry One of three quarries run in tandem by the same manager, Edward Hurst Davies, who went on -- after his Maesygamfa partner's death and years working elsewhere -- to buy one of the other two, Hendreddu, outright.	Gwynedd	1860s–1909 (closure)	Slate
Magheramorne Quarry To reach the chalk they stripped 100 m of basalt off the top and tipped it in the lough, making a 70-hectare peninsula that is still there.	County Antrim	Early 19th century–1980 (quarrying)	Chalk, Limestone
Magpie Mine Notorious 1833 fatal feud; best-preserved Peak District lead mine	Derbyshire	1740–1958	Lead
Maindy Colliery The first pit sunk by David Davies of Llandinam, at Ton Pentre in 1864, where by local tradition he threw his last half crown to his men before they struck coal.	Rhondda Cynon Taf	1864–1948	Coal
Mainsforth Colliery A Durham pit abandoned as a rubbish dump in 1877 and dug out again twenty-three years later	County Durham	1873–6 December 1968	Coal
Malago Vale Colliery A deep Bedminster pit where men resisted safety lamps, and a naked light fired the gas that killed ten in 1891.	Bristol	1840s–1898	Coal
Maltby Colliery One unidentified victim of the 1923 explosion, recovered too badly injured by heat and rockfall to name, was buried locally simply as 'The Unknown Miner'.	South Yorkshire	1908 (sinking)–2013	Coal
Malton Colliery A Browney valley drift mine whose shale heaps are now a wildlife reserve.	County Durham	1870–22 July 1961	Coal
Mamble Colliery Sulphurous coal unwanted by the metal trades found a niche use flavouring beer, carried via hop-drying kilns fired with Mamble coal — while an early attempt at the pit ended when an underground explosion drove its owner to abandon the workings altogether in 1903.	Worcestershire	At least 1811–February 1950	Coal
Mandale Mine Notable surviving engine-house remains near Bakewell	Derbyshire	1797–1851	Lead
Manmoel Colliery Levels on a Bristol sheriff's Welsh estate whose child workers gave evidence to the 1842 Royal Commission.	Caerphilly	Early 19th century–30 November 1949	Coal
Manners Colliery An Ilkeston colliery sunk in the 1870s to the deep Kilburn coal and closed in 1949 after two decades of losses that began with the 1926 strike.	Derbyshire	1870s–October 1949	Coal
Manod Quarry For four years of the Second World War, this Welsh mountain held the National Gallery's entire collection.	Gwynedd	1780s–1960	Slate
Manor Powis Colliery Stirling's anthracite pit, credited with Scotland's finest anthracite and its first two-storey pithead baths.	Stirling	1910-1914–1972	Coal
Mansfield Colliery The Bolsover company's Crownie pit, which brought 2,500 miners to open country east of Mansfield and built Forest Town to house them.	Nottinghamshire	1904–early 1988	Coal
Manton Colliery Twenty-nine collieries closed across Britain in the same twelve months as Manton — a single winter that erased the better part of a century's work in one purpose-built model village.	Nottinghamshire	1897 (sinking)–11 February 1994	Coal
Manvers Main Colliery By its peak, the coking plant built alongside this colliery had grown into one of the largest industrial sites anywhere in Europe.	South Yorkshire	From May 1867 (sinking)–25 March 1988	Coal
Mapperley Colliery The Glendon Iron Company's Simon Fields Pit of 1872 near Ilkeston, closed 1965, remembered for the under-manager who walked into the workings in 1918 and was never found.	Derbyshire	1872–27 March 1965	Coal
Marblaegis Mine The village of Rempstone is completely encircled by the workings, and the gypsum beneath its houses is left standing as pillars.	Nottinghamshire	1951 (first consent)–Still active	Gypsum
Marchlyn Quarry Dinorwic's highest and latest quarry, its ground taken for the upper reservoir of a pumped-storage power station	Gwynedd	to 1969 (with Dinorwic)	Slate
Marden Mine The Godstone hearthstone mine that became a wartime bonded store behind heavy doors while its eastern half was still being mined.	Surrey	By 1849–1946 (abandonment plan)	Hearthstone, Firestone
Mardy Colliery The Rhymney Iron Company's own-freehold pit, closed in 1909 because its coal lay too far in, where the poet Idris Davies later worked.	Caerphilly	c.1859–after 1926	Coal
Marehay Colliery A Ripley coal and ironstone colliery whose tramway fed Morley Park Ironworks, worked from before 1837 into the 1920s.	Derbyshire	By 1837–after 1923	Coal, Ironstone
Marford Quarry A sand and gravel quarry that helped build the Mersey Tunnel, destroyed a medieval castle mound, and is now a nature reserve for bees and wasps.	Wrexham	1927–1971	Sand and Gravel
Margaret Mine The last iron ore mine working in the Furness district, closed in 1960 not because its ore ran out but because it had become too soft to sell.	Cumbria	By 1930s–1960	Iron
Marine Colliery A Cwm colliery, sunk 1889-91, later the site of a serious 1927 explosion.	Blaenau Gwent	1889-91 (sinking)–March 1989	Coal
Maritime Colliery Sunk on faulty ground where three or four successive companies lost heavily before anyone made it pay.	Rhondda Cynon Taf	1841–June 1961	Coal
Marke Valley Mine Once the Liskeard and Caradon Railway reached it in 1877 this became the second-largest copper producer in the district behind only South Caradon.	Cornwall	1828–1890	Copper, Tin
Markham Colliery 106 steel figures walk the route from the former colliery to Duckmanton village, one for every man killed across three separate disasters spanning 36 years.	Derbyshire	1882 (lease)–2 July 1993 (production)	Coal
Markham Colliery, Sirhowy Valley A Sirhowy Valley pit named after Sir Arthur Markham whose coal fired the Paddington expresses at Old Oak Common.	Caerphilly	1910 (sinking)–September 1985	Coal
Markham Main Colliery A Doncaster pit whose defiant miners were the last in Yorkshire to return to work after the 1984-85 strike, in the confrontation remembered as the 'Battle of Markham Main'.	South Yorkshire	1916 (sinking)–1996	Coal
Marley Hill Colliery Its coke sold across Britain and France by 1847, and its 1908 by-product plant turned the whole district's coking coal into benzol and ammonia.	Tyne and Wear	1840–1983	Coal
Marrick Lead Mines A lead ingot bearing the Emperor Hadrian's name, found in these workings and now held by the British Museum, is the one hard clue that Marrick's lead mines may be among the oldest in the country.	North Yorkshire	At least the Norman period–19th century	Lead
Marsden Quarry Quarry, colliery, kilns and a passenger railway called the Rattler, all one operation, and only the quarry left.	Tyne and Wear	By 1870s–Still active	Limestone
Marshall Green Colliery A Wear valley pit that dug as much fireclay and ganister as coal, for brick and refractory makers, for over a century.	County Durham	1830–1936 or 1955	Coal, Fireclay, Ganister
Marston Hall Mine A Marston rock-salt mine sunk in 1850-51 whose flooded caverns collapsed under the Trent and Mersey Canal in July 1907, draining half a mile of it.	Cheshire	1850–1851 (sunk)–1905 (last worked)	Salt
Marston Old Mine The oldest rock-salt mine at Marston, where a tsar is recorded as dining underground by the light of 10,000 lamps in 1844, and whose collapse forced the Trent and Mersey Canal onto a new line in 1958.	Cheshire	c. 1775 or 1777–by 1908 (worked out)	Salt
Marston Pool Mine A six-acre Marston rock-salt mine opened in 1846 by the Thompsons, kept pumped dry as an explosives store after the First World War until its shafts were sealed in 1929.	Cheshire	1846 or 1850–1929 (shafts sealed)	Salt
Martholme Colliery A Great Harwood pit drowned after the 1921 strike and revived by Moorfield men for three more years.	Lancashire	1860s–1922	Coal
Mary Colliery, Lochore The deep Fife Coal Company pit at Lochore whose 1923 reinforced-concrete headframe, one of the first in Britain, stands as a scheduled monument in Lochore Meadows Country Park.	Fife	1902 (sinking)–24 September 1966	Coal
Masson Hill Mine A Derbyshire lead-mining complex riddled with natural caves enlarged by medieval miners, two of which still operate as show caves at the Heights of Abraham.	Derbyshire	Medieval (documented 1470)–20th century	Lead, Fluorspar
Mauricewood Colliery It took over six months to recover all the dead — the last bodies weren't brought up until March 1890, half a year after the fire that killed them.	Midlothian	1870s (approximate)–1889 (closed following the disaster)	Coal
Maury Mine and Sough A new drainage sough, begun to unwater the mine at greater depth, finally broke through to it in 1774 -- only to discover that most of its ore had already been worked out.	Derbyshire	By the 17th century–by 1880	Lead
Mawstone Mine A 1932 gas explosion here killed eight men, five miners and three would-be rescuers, in one of the last major disasters of Derbyshire's lead-mining industry.	Derbyshire	Working by c.1700–1932	Lead
Maxwell Colliery, Dailly A hot, steep Dailly pit over a fire that had smouldered since the nineteenth century, where two miners were suffocated in 1919 and the National Coal Board closed the mine in 1973.	South Ayrshire	to 1973	Coal
Maxwood Colliery The last pit working in Galston: when Maxwood stopped in 1933, mining in the burgh stopped with it.	East Ayrshire	By 1880–1933	Coal
Maypit Mine Maypit is remembered less for what it produced than for what its dispute with Magpie Mine cost -- three lives lost to a fire lit specifically to drive its own miners out of contested ground.	Derbyshire	by 1825–19th century	Lead
Maypole Colliery The last victim of its 1908 explosion was not brought to the surface until 1917 — nine years after the disaster that killed him	Lancashire	1895–June 1959	Coal
Mayshill Colliery Gave its name to the small hamlet of Mayshill, on the Badminton Road between Coalpit Heath and Nibley, home to the New Inn -- one of at least nine pubs in the parish, dating from 1580.	Gloucestershire	Before 1832–by 1949	Coal
McLaren Colliery Three names for one pit — Pwll Llaca, McLaren, then Abertysswg — and a village built around it from nothing in five years.	Caerphilly	1897–1969	Coal
Meadow Colliery, Haigh Wigan Coal and Iron's Meadow Pit on the Earl of Crawford's Haigh ground, 633 strong in 1923 and closed by 1927; the lane keeps its name.	Greater Manchester	1880 (museum)–1925 (museum)	Coal
Meadowmill Mine A short-lived Coal Board drift on an old washer site, now a dry ski slope.	East Lothian	1952 (production 1953)–June 1960 (abandoned December 1962)	Coal
Meal Bank Quarry The earliest Hoffmann kiln built for lime burning in England, 70 m of it still standing below the quarry face at Ingleton.	North Yorkshire	By early 19th century–1909	Limestone
Meall Luaidhe Mines A short-lived 18th-century lead venture in Glen Lyon, part of Perthshire's minor and scattered lead-mining record alongside the better-known but still relatively small Tyndrum mines.	Perthshire	c. 1730–after c. 1730	Lead
Measham Colliery Riddled with unrecorded shafts by the 1720s and twice abandoned as unworkable, it ended as a fully mechanised retreat face taking six and a half feet out of a seam nearly eight feet thick.	Leicestershire	From 1500s–27 June 1986	Coal
Medlyn Moor Mine A Wendron tin mine whose lodes were found by tin streamers in the bed of the River Cober and mined into the hillside.	Cornwall	1846 (earlier as stream ground)–1879	Tin
Medomsley Colliery Eight men and boys died riding up the shaft when worn cage shoes let their cage slip its guides.	County Durham	1839–6 October 1972	Coal
Meerbrook Sough Mine Its sough drained a rival mill's water supply so effectively it put the mills out of business -- and its winding engine, made in 1844, was dismantled and rebuilt twice before finding a permanent home.	Derbyshire	1772–c.1870	Lead
Meiklehill Colliery A Kirkintilloch pit whose 1918 explosion made a Court of Session compensation precedent.	East Dunbartonshire	By 1866–1923	Coal, Ironstone
Meiros Colliery Llanharan's first deep pit, cut into seams that stood almost on end.	Rhondda Cynon Taf	1880–1931	Coal
Meldon Quarry A working railway ballast quarry that also exposed a rare banded aplite dyke, unusual enough to be designated its own separate SSSI as the only sodium-potassium-lithium pegmatite recorded anywhere in Britain.	Devon	1874–2012	Aplite, Granite
Meliden Lead Mines Kept working, wet ground and all, by an unbroken sequence of ever more powerful pumping engines for over two centuries — from one of Wales's earliest Newcomen engines in the 1710s-30s to fifteen steam engines running together by 1874.	Denbighshire	Worked from at least the 1630s–1905	Lead, Zinc
Melkridge Colliery A Melkridge landsale pit that sold coal to farms and quarries, then grew to 67 men on the eve of its 1940 closure.	Northumberland	c. 1877–1940	Coal
Melloch Colliery A wartime reopening of an old Ochils working, run as an outpost of Tillicoultry mine.	Clackmannanshire	c. 1850 (reopened 1939)–1948	Coal
Mells Colliery The last of the Vobster pits, where an 1868 shaft death led to a manslaughter charge that collapsed over the pit's 'complicated code of signals'.	Somerset	1863–1943	Coal
Melton Bottom Chalk Pit The type locality of the Welton Chalk Formation, and still the source of 300,000 tonnes of industrial chalk a year.	East Riding of Yorkshire	1920s–Still active	Chalk
Meredith's Colliery Its 1893 closure of the Upper Four-Feet seam is confirmed independently by two separate NMRS accounts.	Merthyr Tydfil	By 1858–1893	Coal
Merlin Mine Shown to paying visitors as a show cave from at least 1793 -- 'a rather severe show cave', by one modern account -- Merlin Mine is one of the more extensive former lead workings on the slopes of Eyam Dale, its passages linking into the wider Carlswark Cavern cave system.	Derbyshire	by 1793	Lead
Merrington Colliery The pit that made a fortune for Reay and Johnson in the early mining town of Spennymoor.	County Durham	1841 (first coal)–3 June 1928	Coal
Merrivale Quarry The last granite quarry working on Dartmoor, which cut the Falklands war memorial and ended its life polishing Norwegian gabbro.	Devon	1874–1997	Granite
Merrybent Copper Mine The Victorian company mine and Edwardian revival on the Middleton Tyas copper veins, an engine shaft of 1866 and a handful of men to 1925 for less than three thousand tons in fifty years.	North Yorkshire	c. 1856–after 1925	Copper, Lead
Merrylees Drift Mine Two wartime drifts driven into a shallow basin, notorious afterwards for the damage its workings did to houses in Barlestone and Newbold Verdon.	Leicestershire	1942 (coal from 1943)–early 1970s	Coal
Merstham Chalk Mines Worked for perhaps a thousand years and used to build Windsor Castle and Old St Paul's, these mines were also where Alfred Nobel chose to give a public demonstration of dynamite in 1868.	Surrey	Worked from at least the 7th-8th centuries–1961	Firestone, Chalk, Hearthstone
Merthyr Dare Colliery Most collieries that get demolished stay demolished -- Merthyr Dare was pulled down, then someone came back a few years later and built a new winder house on the same spot anyway.	Rhondda Cynon Taf	before 1851–1948	Coal
Merthyr Llantwit Colliery A small Tonmawr colliery that went through three names in its last four years.	Neath Port Talbot	1888–1926	Coal
Merthyr Vale Colliery Once the South Wales Coalfield's biggest pit; its waste tip was the source of the 1966 Aberfan disaster	Rhondda Cynon Taf	1869 (sinking)–1989	Coal
Mesne Lea Colliery A Worsley pit thought free of gas, where in 1867 a man went in with a candle before the fireman's round and seven died.	Greater Manchester	from 1824	Coal
Mesnes Colliery A Wigan pit worked by candlelight beside old goaves, where seven died in 1873 and the jury called for locked lamps.	Greater Manchester	from before 1873 (worked for many years)	Coal
Meta Colliery Devon Colliery's No. 3 pit near Fishcross, named after the managing director's mother, which supplied its own brickworks and briquetting plant until it closed in 1959.	Clackmannanshire	1923–1959	Coal, Fireclay
Metal Bridge Drift A post-war National Coal Board drift near Ferryhill that was still taking on men in the late 1970s, a year before it closed.	County Durham	1954–July 1978	Coal
Methley Junction Colliery A Briggs pit near Normanton that ended as a ventilation shaft with the area's last wooden headgear.	West Yorkshire	1845 (sinking)–1903	Coal
Michael Colliery Closed after a 1967 underground fire killed nine miners, one of Fife's worst mining disasters	Fife	1892 (sunk)–1967	Coal
Micklam Fireclay Mine A clifftop fireclay mine on the Cumberland coast that lined Workington's steel furnaces, still at work in 1981.	Cumbria	to 1981	Fireclay, Coal
Mickley Colliery The senior partner of the pair: Mickley employed 640 men in 1894 to Prudhoe’s 385, and gave its name to the company that ran both.	Northumberland	By 1855–after 1935	Coal
Mickleybank Colliery A Prudhoe pit that stayed with the Bewick name for nearly a century, working with about a dozen men.	Northumberland	By 1860–13 October 1956	Coal, Fireclay
Middle Duffryn Colliery Three disasters in eight years: thirteen dead in 1850, sixty-four in 1852, three in a falling bucket in 1858.	Rhondda Cynon Taf	1843–late 1880s	Coal
Middle Patricroft Pit A two-shaft Ince Hall pit near Hindley, each shaft to its own seam, where twelve died in 1849.	Greater Manchester	by 1849	Coal
Middlecleugh Mine One of the four mines Smallcleugh connects to underground, kept open by a volunteer dig that re-arched a collapsed entrance and even relaid its rails.	Cumbria	After 1758–by 1920	Lead, Zinc
Middlestone Moor Colliery A one-seam pit near Spennymoor that never employed more than about thirty men.	County Durham	By 1930–1965	Coal
Middleton Tyas Copper Mine For a mine that barely lasted a generation at full intensity, Middleton Tyas left an outsized reputation: its copper was rated among the highest-grade ore found anywhere in Europe, a rare distinction for so small and short-lived an English deposit.	North Yorkshire	From the 15th century–mid-18th century (exact date unrecorded)	Copper
Middridge Colliery The pit village at Eden outlived its pit by sixty years and was demolished with the people still in it.	County Durham	1872–1914	Coal
Midgeholme Colliery A Pennine-edge coalfield worked for over three hundred years, whose coal once rode behind Stephenson's Rocket.	Cumbria	1628 (first record)–1954	Coal
Midland Quarry A Tuttle Hill road-stone quarry run by four generations of the Ensor family, now a flooded void kept as open water in the middle of a Nuneaton housing estate.	Warwickshire	from 1876	Diorite, Sandstone
Milfraen Colliery A colliery on the open mountain above Blaenavon that lost five men from a cage in 1902 and nine to a coal cutter's spark in 1929, and closed four years after the second.	Torfaen	1843–1933	Coal
Milkwellburn Colliery A Derwent valley colliery of four drifts and shafts, working from 1840 and still letting drivages to hewers in 1923.	County Durham	by 1840	Coal
Mill Pit Colliery A pit eight years in the sinking that worked barely five more before the ground beat it.	Bridgend	1900 (sinking)–1913	Coal
Mill Pit, Blyth A Blyth pit sunk on the site of an old mill in 1885, employing 1,459 in 1925 and remembered in a 2023 exhibition by the Friends of Crofton Mill Field.	Northumberland	1885–12 July 1969	Coal
Millbrook Colliery A pair of Kendon valley levels worked for more than a century, from the 1820s to about 1940.	Caerphilly	c. 1825–around 1940	Coal
Millclose Mine England's most productive lead mine, finally defeated by catastrophic underground flooding	Derbyshire	17th century–1940	Lead, Zinc
Milldam Mine Reopened in 1985 to mine what the lead miners of a century earlier had thrown on the spoil heap.	Derbyshire	1885–October 2023	Lead, Zinc, Barite, Fluorspar
Millfield Grange Colliery One of the simple shaft pits of Cockfield Fell's coal rush, its tramway earthworks still traceable.	County Durham	By 1883–25 February 1911	Coal
Milnwood Colliery A Mossend pit owned in the 1870s by John Christie — a coalmaster whose money paid for a Perthshire estate and sent his daughter round the world.	North Lanarkshire	By 1865–by 1925	Coal
Milwr Tunnel A single drainage tunnel grew, over sixty years, into more than sixty miles of connected passages — and when it accidentally broke into a flooded cavern in 1917, a holy well several miles away ran dry	Flintshire	July 1897–1977	Lead, Zinc
Minera Lead Mines A major North Wales lead-mining centre, now restored as a country park with a working beam engine house	Wrexham	13th century–1914	Lead, Zinc
Minllyn Slate Quarry Four companies went bankrupt on it in fifty years, and it was still called the Carlyle Quarry long after the Carlyle company had gone.	Gwynedd	Before 1793–1925	Slate
Minnie Pit Named for the owner's daughter who cut the first sod, and the scene of the North Staffordshire coalfield's worst disaster: 155 dead in 1918, 44 of them boys.	Staffordshire	1881–April 1930	Coal
Minto Pit Lochgelly's best-known colliery, sunk from 1901 on Lord Minto's estate, which employed more than 1,400 people in 1911 and was closed in 1967 by water from its closed neighbours.	Fife	1901 (sinking)–September 1967	Coal
Mitchell Main Colliery Closed in 1933 not for want of coal but for want of quota: its owners sold the right to mine it and sent 1,500 men home.	South Yorkshire	1871 (sinking begun)–1956	Coal
Mixon Mine Ecton's smaller neighbour, whose copper shared the Duke of Devonshire's pack-horse road to the Whiston smelter.	Staffordshire	1600s–c. 1820	Copper, Lead
The Moat Pit The world's first known undersea coal mine, a stone tower rising from the Firth of Forth, worked for 35 years before being destroyed by the Great Storm of 1625.	Fife	c. 1590–1625 (destroyed by storm)	Coal
Moel Faban Quarry A cluster of small Rachub slate workings that in 1903 became part of the Bethesda Co-operative Quarries, set up to employ men locked out of the Penrhyn quarry.	Gwynedd	Mid-19th century–before 1914	Slate
Moel Hebog Mine A high, weather-bound copper mine on Moel Hebog that could only be worked eight months a year.	Gwynedd	1837–1889	Copper
Moel Tryfan Quarry A single rockfall in 1909 dumped 421,000 tons of rock into the pit in one event, permanently changing the quarry's fortunes.	Gwynedd	1745 (lease)–1972	Slate
Moelwyn Quarry One of the first two slate quarries in the world known to have used a water turbine (installed 1864), and, remarkably for so remote a site, a quarry that ran basic literacy classes for its workers in the 1860s, visited by the sitting Prime Minister, Lord Palmerston.	Gwynedd	1841–1897	Slate
Mohopehead Mine A single-phase West Allen lead mine whose eight stone bouse teams are the best preserved in the North Pennines.	Northumberland	1729–1850s	Lead
Moira Collieries Seven pits sunk one after another over half a century around a single blast furnace, all of them owned by one family until 1895 and all named after its titles — with gob fires so frequent they were simply part of the job.	Leicestershire	1804–1990	Coal, Fireclay
Molland Mine An Exmoor-edge copper mine that turned to iron ore, still raising it into the 1890s.	Devon	1600s–1894	Copper, Iron
Mona Mine Copper sheathing from this mine and its neighbour coppered the entire Royal Navy fleet between 1778 and 1782, at a time when Parys Mountain was briefly the largest copper mine on Earth.	Anglesey	1764 (lease)–1899 (merger)	Copper
Monk Bretton Colliery Its workforce collapsed from nearly 1,500 to 170 between 1910 and 1933, then recovered to over 1,200 under the Coal Board.	South Yorkshire	1870–1968	Coal
Monkland Colliery A Calderbank pit where a father and a workmate died digging out a buried son in 1903.	North Lanarkshire	to after 1911	Coal
Monks Park Mine A 212-step slope shaft into a Bath stone quarry that the War Department requisitioned, never used, and handed half of to the Royal Navy.	Wiltshire	1886–March 2018 (mothballed)	Limestone
Monkton Farleigh Quarry Three hundred acres of stone tunnel on top of a hill with no road to it, solved by driving a mile-and-a-quarter conveyor tunnel up from the railway in the valley below.	Wiltshire	1881–1930 (stone working)	Freestone
Monktonhall Colliery A Midlothian Coalfield colliery, abandoned in 1997.	Midlothian	1953 (sinking)–April 1997	Coal
Montagu Colliery Two shots fired in the Brockwell seam in 1925 broke into a pit flooded and forgotten since 1848, and 38 men and boys died.	Tyne and Wear	1750–13 November 1959	Coal
Montgomeryfield Colliery An Ayrshire pit where a rope slipped off the drum in 1898 and four boys, two of them brothers, fell to the bottom.	North Ayrshire	By 1895–by 1944	Coal
Moorfield Colliery An Accrington pit two and a half years old when a gas outburst killed sixty-eight, the youngest aged ten	Lancashire	c. 1881–21 January 1949	Coal
Moorgreen Colliery Barber Walker's biggest pit and the last in the Eastwood district to close, in 1985; D. H. Lawrence's Minton Pit.	Nottinghamshire	1865 (coal from 1871)–July 1985	Coal
Morallee Fell Mine Returned in 1888 as 'Exploring' after thirty years of small companies coming and going on the fell.	Northumberland	1861–1892	Lead
Moresby Colliery The Earl of Lonsdale’s Moresby royalty worked from one pit for eighty-two years, closed in 1961 when its seams ran out, and now carries a community woodland over the levelled heap.	Cumbria	1879–1961	Coal
Moreton Colliery A Saundersfoot anthracite pit worked from the 1770s, where women still went underground after the 1842 ban.	Pembrokeshire	c. 1770–1887	Coal
Morfa Colliery Known across the coalfield as the pit of ghosts, and its memorial now stands in the middle of a working steelworks.	Neath Port Talbot	1847 or 1849 (sources differ)–October 1913	Coal
Morfa Du Mine A copper working on Parys Mountain, alongside the Mona and Parys mines.	Anglesey	1874–1904	Copper
Morgan's Colliery Fed the Dowlais Iron Works with coal and iron ore, sharing the Big/Six-Feet and Upper-Four-Feet seams with several neighbouring pits.	Merthyr Tydfil	By 1893–May 1924	Coal
Morlais Colliery The last pit in the coalfield to wind by steam, working coal out under the Loughor estuary until 1981.	Carmarthenshire	1882–1981	Coal
Morley Main Colliery After the 1872 explosion, pipes and matches were found in the pockets of the dead.	West Yorkshire	Mid-1850s–1909	Coal
Morrison Busty Colliery The pit heap now powers the council depot that took over the pit: a 3 MW solar farm and a wind turbine stand on the old waste.	County Durham	1927–1973	Coal
Morton Colliery The Clay Cross Company's century-long pit at Morton, whose shafts were still being pumped 25 years after it closed.	Derbyshire	1865–1965	Coal
Morvah Consols A failed tin mine whose unpaid miners scared off the auctioneer, ending in a Stannaries Court closure and a leading company-law case.	Cornwall	1820s (probably)–1875	Tin, Copper
Morwood Colliery A tiny pit near Bardon Mill that the National Coal Board grew to 136 men before closing it in 1960.	Northumberland	1871–1880 (earlier workings)–1 July 1960	Coal
Mosley Common Colliery Rebuilt as a £7.5 million NCB 'superpit' employing 3,000 — and closed six years later with its coal still in the ground.	Greater Manchester	1868–1968	Coal
Moss Rake Hosted the earliest documented use of mine ventilation anywhere in the Derbyshire lead orefield, in 1694.	Derbyshire	At least 1617–early 1970s	Lead, Calcite
Mossbeath Colliery The deepest shaft in Fife when sunk in 1895-96, closed by fire in 1945, kept as a training pit, and later reborn as the headgear of a Sutherland colliery.	Fife	1892 (No. 1 sinking)–March 1945	Coal
Mossfield Colliery Its eight-foot Cockshead seam could set itself alight, and did so fatally twice, in 1889 and 1940.	Staffordshire	By 1889–1963	Coal
Mosside Colliery A Bathgate colliery whose washing plant, built in 1902, cleaned the coal of all three of Gavin Paul and Sons' collieries.	West Lothian	1878–1925	Coal
Mosside Mine An Airdrie mine where water from old workings drowned three men in 1939, remembered in Whinhall, and possibly Kippsbyre under another name.	North Lanarkshire	—	Coal
Moston Colliery Platt Brothers' deep Manchester pit, scene of the 1940 man-haulage crash, whose 1931 pithead baths still stand.	Greater Manchester	1854–June 1950	Coal
Mostyn Colliery Six hundred years of coal ended in a week in July 1884, when the estuary broke in and pumping proved useless — the water was coming from the sea.	Flintshire	13th century–1884	Coal
Motherwell Colliery John Watson's Motherwell pit, which employed over a thousand in 1910 and whose No. 2 shaft lies buried at the end of Bruce Avenue.	North Lanarkshire	By 1866–after 1940	Coal, Fireclay
Mottram Wood Colliery A small Barnsley pit in which gas killed a deputy in 1924 and three young men in 1943.	South Yorkshire	1908–1944	Coal
Moulds Side Mine Stodart Hush, one of the finest examples of its kind in the North Pennines, is a man-made gorge 40 metres wide with cliffs 40 metres high on either side -- created entirely by miners releasing dammed water to strip away soil and reveal the lead vein beneath.	North Yorkshire	At least 1285–From 1822	Lead
Mount Moor Colliery A Black Fell pit worked by the 1720s, where a slipped rope killed three brothers and a boy of seven in 1814.	Tyne and Wear	Before 1826–May 1931	Coal
Mount Osborne Colliery Seventeen died here in one morning in 1841 — four miners, eleven hurriers, a man in the shaft and the foreman who went in after them.	South Yorkshire	By 1841–1883 or 1894	Coal
Mount Pleasant Lead Mines Its mine shafts cut directly through medieval cultivation terraces -- an unusually direct, physical collision between the valley's farming and mining pasts.	Derbyshire	from 1767	Lead
Mount Wellington Mine Mount Wellington's water problem was so severe that the mine ultimately proved more useful helping drain its neighbour Wheal Jane than as a producer in its own right — an unusual case of a mine's second act eclipsing its first.	Cornwall	1976–1978 (initial closure)	Tin
Mountain Colliery, Buckley One of George Watkinson and Sons' Buckley pits, now under a street that keeps its name.	Flintshire	1890s–1929	Coal
Mountain Colliery, Gorseinon A Gorseinon pit whose coal could be known by its purple hue, worked for over 120 years.	Swansea	1846–1969	Coal
Mountain Pit, Tredegar Claimed as the deepest water-balance pit in the world, lifting coal 630 feet with nothing but the weight of water.	Blaenau Gwent	1841–1896	Coal
Mountsorrel Quarry A rock face barely metres from Mountsorrel's still-thriving industrial quarry is fenced off and left entirely alone — because Castle Hill's asphaltite is rare and significant enough to have been drawn on for international research into how life on Earth actually began.	Leicestershire	from Roman	Granite
Mowbray Mine Prized today not for its iron but for the mineral specimens it left behind -- its baryte and fluorite crystals are held in museum and university collections on both sides of the Atlantic.	Cumbria	1842–early 20th century	Iron
Muiravonside Colliery A Nimmo colliery near Falkirk whose 1924 death, from gunpowder lit by a naked light, broke the 1919 explosives order.	Falkirk	By 1882–1926	Coal
Muirbeath Colliery The last pits sunk in Dunfermline's own burgh coalfield at Highholm, worked for twenty years.	Fife	1894 (sinking from 1892)–1914	Coal
Muircockhall Colliery A Dunfermline burgh-mineral colliery begun in 1868 that stopped raising coal in 1944 and then trained miners until 1969.	Fife	1868–December 1944 (coal)	Coal
Muiredge Colliery The Bowman and Cairns colliery that turned Buckhaven from a fishing community into a coal town, reopened in 1864 after a fault had defeated the Wemyss estate.	Fife	1856–1938	Coal
Muirkirk Collieries The coal and ironstone pits that made an Ayrshire moor worth building an ironworks on in 1787	East Ayrshire	1787–1923	Coal, Ironstone
Muirshiel Barytes Mine A remote Renfrewshire barytes mine worked for around 200 years; once produced a third of the UK's total output	Renfrewshire	mid-18th century–1969	Barite
Muldron Ironstone Pits A scatter of Victorian ironstone pits on the West Calder moors, worked for the Coltness furnaces and now surrounded by wind turbines.	West Lothian	After 1855–c.1885	Ironstone
Mulreesh Lead Mines Islay's lead was worth mining as much for its silver as for the lead itself — at up to 40 ounces of silver per ton of metal, a good haul of ordinary-looking galena from this one Hebridean island could yield a genuinely valuable by-product most British lead mines never saw in anything like the same quantity.	Argyll and Bute	1360–1900	Lead, Silver
Murdostoun Colliery A Cleland colliery where a pitheadman, his electric light failed, walked into the colliery reservoir in the dark and drowned.	North Lanarkshire	By 1909–1932	Coal
Murton Colliery The winder that had worked the shaft since 1922 was formally listed as a piece of protected heritage in January 1992 — and demolished anyway, just over two years later.	County Durham	From April 1838 (sinking)–29 November 1991	Coal
Myers Head Mine A 30-foot waterwheel on eleven stone piers could not keep this mine dry, and it flooded for good when the miners broke into a hidden cavity in the vein.	Cumbria	c. 1866–late 1870s	Lead, Zinc
Mynachdy (Rhosmynach and Carmel Head Copper Mines) Its 1839 prospectus compared the ground to Parys Mountain, then briefly the largest copper mine in the world — the comparison did not hold up	Anglesey	From 1839–1926	Copper, Chrysotile
Mynachdy Colliery A small, turbulent Ynysybwl colliery worked from 1903 for house coal from the Darren Ddu seam, closed in 1943; its powder-house and stable ruins survive.	Rhondda Cynon Taf	1903–1943	Coal
Mynydd Maen Colliery A Pontypool slant that ran Elled as its outlier and ended under the National Coal Board in 1955.	Torfaen	1913–October 1955	Coal
Mynydd Newydd Colliery Its miners cut a chapel out of the coal face in 1845 and held a service in it every Monday morning for sixty years	Swansea	1843–1 July 1955	Coal
Myttonsbeach Mine One of the twelve sites in the Shropshire Mines Trust's field guide to the Stiperstones mines, documented mainly through its 1864 change of ownership rather than any surviving narrative of its own working life.	Shropshire	from Working by the early 1860s	Lead