Mines

Region

Commodity

148 mines beginning with G, of 1950.

Mine	Region	Worked	Commodities
Gadlys Colliery The Wayne family's ironworks colliery at Aberdare, one of the Cynon Valley's first pits and one of its most dangerous.	Rhondda Cynon Taf	c. 1802 (by 1844 by one account)–1902 (pits); Gadlys River Level 1939	Coal, Ironstone
Gaewern Quarry Its wrought-iron fishbelly T-section tramway rail, a design rarely used inside a quarry's own internal system, still survived on site as of the early 1990s survey.	Gwynedd	Mineral rights leased in 1787–Merged into Braichgoch (and later also Abercorris) from 1884	Slate
Gang Mine Its own name comes from 'gangue', the waste rock dumped around its shafts -- ground so lead-contaminated that it now supports one of Europe's rarest plant communities.	Derbyshire	Already 'ancient' by 1652–No reliable closure date has yet been located.	Lead
Gannow Colliery Burnley's canal-side pit of 1856 whose 229-metre shaft cost years and lives to sink, and which wound Habergham's coal for sixty years after its own seams were done.	Lancashire	1856–1941	Coal
Gardrum Colliery A Falkirk pit that fed the Carron ironworks, whose Victorian accident reports survive in the Falkirk Herald.	Falkirk	By 1854–18 September 1920	Coal, Ironstone
Garn Colliery, Nantyglo Owned by Sylvanus Jones, who ran several small Nantyglo pits without joining the coal owners' association — he was declared bankrupt in 1925.	Blaenau Gwent	By 1896–No reliable closure date has yet been located.	Coal
Garnant Colliery Ten men in a cage meant for eight, the rope snapped, and they fell 225 feet — the worst disaster the Amman Valley has had.	Carmarthenshire	No reliable opening date has yet been located.–1912	Coal
Garngoch Colliery Glasbrook Brothers' three connected Gorseinon pits, the last of them closed by the Coal Board in 1965.	Swansea	c. 1870 (No. 1 pit)–1965 (No. 3 pit)	Coal
Garscube Colliery Its site, once two deep shafts over 100 metres down, now lies buried beneath ordinary parkland.	North Lanarkshire	Sinking began around 1850 under the Summerlee Iron Company.–Closed in 1966 and formally abandoned in 1967.	Coal
Garswood Hall Colliery Its No. 9 shaft exploded while being sunk in 1902, again in 1932, and once more while it was being filled in.	Greater Manchester	By 1902–1932 (No. 9 Pit)	Coal
Garswood Park Colliery Two explosions fifteen months apart killed thirty, and the second began as the veteran fireman went to fire a shot.	Merseyside	By 1862–No reliable closure date has yet been located.	Coal
Gartheiniog Quarry Passed through at least seven distinct ownerships in under sixty years -- including a failed post-war housing venture and a fighter pilot's short-lived attempt to add an enamelling works -- rarely staying profitable for long under any of them.	Gwynedd	1873 (exploration); 1880 (quarrying)–Closed for the final time in October 1937.	Slate
Gartshore Colliery A pit bottomer named Andrew Airlie, thrown against a wall by the 1923 explosion, climbed back underground himself to help pull out the injured rather than wait for a rescue team.	East Dunbartonshire	From c. 1860; Gartshore 9/11 1873 (ironstone), 1893 (coal)–1968 (last pit, Gartshore 9/11)	Coal
Gascoigne Wood Mine Every tonne from five pits came up here, on more than 25 km of belting — the longest mine conveyor network in Europe, and the complex's single point of failure.	North Yorkshire	1983–2004	Coal
Gasswater Mine Known since the 1870s, left alone until 1917, and then for a time the largest producer of barytes in the United Kingdom.	East Ayrshire	Known from the 1870s; worked from 1917–1963	Barite
Gate Crag Quarry Eight people still on the books in 1930 at a Borrowdale slate quarry the return records as already suspended.	Cumbria	Working by 1929–Mining suspended 1929	Slate
Gatewen Colliery It was not worked out; it simply ran out of room. Its headgear went to Bersham and kept working.	Wrexham	1877–1932	Coal
Gatten Mine Worked down a pink vein of baryte to about 200 metres, then given up in the 1940s not because the ore ran out but because the mine was too remote.	Shropshire	c. 1887–1945	Barite
Gauchalland Colliery One of fifteen pits around Galston at the century’s end, and the one whose rows of company houses were written up in detail by a royal commission in 1913.	East Ayrshire	By 1880–Early 20th century	Coal
Gautries Rake Its dressing floor holds the only known stone-lined buddle anywhere in the northern half of the Derbyshire orefield.	Derbyshire	Working by 1671–No reliable closure date has yet been located.	Lead
Gaverigan Tin Streaming Produced 'sparable tin', a variety of cassiterite named for its resemblance to a cobbler's nail.	Cornwall	By 1873–No reliable closure date has yet been located.	Tin
Gawton Mine Historic England rates it the best-preserved arsenic mine, calciner and flue complex of its type in the country.	Devon	copper worked from before 1846; arsenic from c. 1846–1902–03 (arsenic works); 1926 (last activity)	Arsenic, Copper
Gedling Colliery A Nottinghamshire colliery known from the 1950s as the 'Pit of Nations' for its unusually diverse workforce, now Gedling Country Park.	Nottinghamshire	Sunk 1899–1902–8 November 1991	Coal
Geevor Tin Mine One of the last working Cornish tin mines; now a museum	Cornwall	1911–1990	Tin, Copper
Gellideg Colliery The Gellideg No.2 level fed the Cyfarthfa Iron Works, abandoned in March 1924.	Merthyr Tydfil	No reliable opening date has yet been located.–March 1924	Coal
Gelligaer Colliery The 1828 level where Thomas Powell began the career that built Powell Duffryn, later worked with Llancaiach until both closed in 1887.	Caerphilly	1828–May 1887	Coal
Gellyceidrim Colliery An Amman valley anthracite pit working the Peacock seam, closed in 1957 so that its men could be moved to Pantyffynnon down the valley.	Carmarthenshire	By 1905–1957	Anthracite
Gentlemen Colliers A Forest of Dean gale worked by free miners since at least 1735, whose most famous partner told a prospective buyer flatly that he had never got anything by it.	Gloucestershire	By 1735–c. 1900	Coal
Gentlewoman's Pipe A lead mine near Matlock Bridge, named in Benjamin Bryan's list of Matlock lead mines working in 1807-09.	Derbyshire	Working by 1807-09–No reliable closure date has yet been located.	Lead
Genwen Colliery Chauncey Townsend's Llwynhendy Fire Engine Pit of 1766, with a listed engine house, closed by a 1907 explosion that killed four miners and two rescuers.	Carmarthenshire	1766–1907 (flooded 1908)	Coal
George and Charlotte Copper Mine Named for George III and Queen Charlotte, and now entered on a battery train 460 metres into the Deep Adit	Devon	Opened in the 18th century; copper exported from Morwellham from 1712–1869	Copper, Pyrite
Gethin Colliery Its manager was found responsible for two explosions sixteen years apart and prosecuted for neither	Merthyr Tydfil	1849–Coal production ceased in the 1920s; pumping until 1947	Coal
Gibfield Colliery Britain's first purpose-built colliery pithead baths were built here in 1913 — the building still stands today, just fixing cars instead of washing miners.	Greater Manchester	1829–1963	Coal
Gill Force Mine A short-lived iron venture whose railway branch became the last stretch of today's Ravenglass and Eskdale Railway.	Cumbria	1880–By 1884	Iron
Gillfoot Park Mine One of six haematite pits sunk on a single Egremont property, and a noted source of 'butterfly'-twinned calcite alongside its iron ore.	Cumbria	1879–1915	Iron
Gillhead Colliery A pit that employed under fifty men for sixty years, then quadrupled during the war and closed in 1959 at 140 — and sold ganister and fireclay for as long as it sold coal.	Cumbria	By 1860s–1959	Coal, Fireclay, Ganister
Gillow Slate Quarry Worked from sea level to clifftop below Tintagel church, and gone from the Ordnance Survey between 1884 and 1896.	Cornwall	Possibly from the 17th century–Disused by 1896	Slate
Gilwen Colliery Sunk by an ironworks in 1860 and reached by its own locomotives over the hillside, it outlived the ironworks to employ 400 men in the 1920s.	Neath Port Talbot	1860–No reliable closure date has yet been located.	Coal
Gin Pit Colliery Named after winding gear from an even older colliery on the same spot — its own workers' village still stands, now with a pit wheel borrowed from a completely different Nottinghamshire mine as its memorial.	Greater Manchester	c. 1872–1955-58 (sources vary)	Coal
Gin Pit, Maesteg The Llynvi Iron Company's pit on its Maesteg ironworks site, scene of the district's worst mining accident, on Boxing Day 1863.	Bridgend	Probably early 1840s–1875	Coal, Ironstone
Glaisdale Ironstone Mine A village built on ironstone that was seventy metres deeper than expected, and a tramway that went up and over a moor rather than round it.	North Yorkshire	Mid-1860s–1876 (returns record abandonment in 1875)	Ironstone
Glamorgan Colliery Its 1905 engine house is one of the very few substantial colliery buildings still standing anywhere in the Rhondda Valley, most having been demolished after closure.	Rhondda Cynon Taf	1861–1945 (coal winding); kept open for pumping until 1966	Coal, Fireclay
Glanamman Colliery A shaft that employed seven men in 1907 grew to over two hundred under a one-colliery company, only to be among the first pits the new National Coal Board shut.	Carmarthenshire	By 1898–31 January 1948	Coal
Glapwell Colliery A Sheepbridge Top Hard pit whose village grew from eighteen houses to nearly five hundred.	Derbyshire	Sinking begun 11 August 1882–1974	Coal
Glasdir Mine Glasdir's real legacy has nothing to do with how much copper it actually produced — it's that the ore-separation technique proven here in 1897 became the direct ancestor of froth flotation, the process still used to concentrate the great majority of the world's metal ores today.	Gwynedd	worked from c. 1852 (opencast); Elmore family ownership from 1896–1915	Copper, Silver, Gold
Glasshoughton Colliery Its 1931 pit-head baths, built for over 3,000 men, were the largest scheme of their kind anywhere in the country — the first miners in West Yorkshire to wash off a shift's coal dust before going home.	West Yorkshire	Sunk under an 1865 lease; opened to the Haigh Moor seam by 1869–March 1986	Coal
Glebe Mine A small Eyam lead pit that closed in 1884 gave its name to Glebe Mines Ltd, which went on to become one of Derbyshire's major 20th-century fluorspar producers, surviving corporate changes through Laporte ownership and a 21st-century Italian takeover before finally closing in 2010.	Derbyshire	Worked for lead from at least the 1860s.–Lead working ended in 1884	Lead, Fluorspar
Gleision Colliery One of the last handful of working coal mines in South Wales when a blast breached flooded workings in 2011, killing four of the seven miners underground -- the worst Welsh mining disaster in three decades.	Neath Port Talbot	1962; current layout from 1980–2011	Coal
Glen Rushen Mines Mining began after a hay cart's wheel accidentally uncovered a lump of lead on the cart track through the glen.	Isle of Man	1831–1879	Lead, Zinc
Glenariff Iron Ore Mines Ore from the Cloghcorr and Parkmore workings ran down Ireland's first 3ft-narrow-gauge railway to Red Bay Pier for export to Scottish and English ironworks.	County Antrim	Railway and pier completed 1873–Mining ended 1881; company sold in bankruptcy 1885	Iron
Glenavon Colliery 'The Squint', a drift mine at Croeserw in the Afan valley opened in 1899, where five men drowned in an inrush in 1900.	Neath Port Talbot	1899–After 1945, date not established	Coal
Glenboig Fireclay Mines A clay so free of iron and lime that its bricks would not crack — a quarter of a million a day, and a million a year to Germany, Russia and Belgium	North Lanarkshire	1830s; the Glenboig-Inchneuk mine from the 1880s–1956 (Glenboig-Inchneuk); other mines to 1981	Fireclay
Glenbuck Colliery A now-vanished Ayrshire mining village that produced 50 professional footballers in 50 years, including Liverpool manager Bill Shankly, whose four older brothers all played for the village's own junior side.	East Ayrshire	Ironworks from 1795; coal mining through the 19th century–1933 (Grasshill Colliery, the last working pit)	Coal
Glenchass Mine A minor Manx copper mine near Port St Mary, alongside Bradda and Foxdale.	Isle of Man	1857 (earlier trials from c.1842)–1865	Copper
Glencraig Colliery A colliery whose 1933 fatal accident became one of the most-cited cases in UK employment law.	Fife	c.1895–1966	Coal
Glendinning (Louisa) Mine A remote Scottish valley was, for a few short years in the 1790s, the source of Britain's entire domestic antimony supply.	Dumfries and Galloway	1788–1922	Antimony
Glendon Ironstone Quarries Part of the Northampton Sand ironstone belt worked for the Midlands iron industry.	Northamptonshire	1863–31 December 1979	Iron
Glengonnar Glengonnar's gold rush left behind spoil heaps still known locally as 'gowd scaurs' four centuries later — a folk name for the alluvial workings that has outlasted almost everything else remembered about the gold itself.	South Lanarkshire	1239 (earliest record); worked from 16th century for gold–1940	Lead, Silver, Gold
Glenravel Iron and Bauxite Mines The same rock was worked twice for two entirely different minerals — iron in the Victorian boom, then bauxite when Britain needed aluminium for Spitfires	County Antrim	Outcrop working from 1866; underground mining from January 1867–31 December 1945 (final bauxite closure)	Iron, Bauxite
Glenrhondda Colliery The colliery's own workforce started a drum-and-fife band in 1897 that outlived the pit itself by decades, still performing today as the Treherbert & District Band (see Culture, below).	Rhondda Cynon Taf	1911–1966	Coal
Glensanda Quarry A quarry with no road, hidden inside a mountain: the granite drops 300 m down a shaft and travels a mile by conveyor to reach the ships.	Highland	1986–Still active	Granite
Glentaggart Colliery No baths, no washer, and a canteen four miles away in the village for men to eat their packed pieces in.	South Lanarkshire	1943–1969	Coal
Gloddfa Ganol Quarry For 24 years its underground galleries housed one of Britain's great private narrow-gauge locomotive collections -- over 80 engines gathered from industrial railways across Britain and Europe -- rather than slate.	Gwynedd	No reliable opening date has yet been located.–The Gloddfa Ganol Mountain Centre closed at the end of 1997	Slate
Gloria Colliery, Hartley Sunk in 1935 to reach coal trapped behind a horseshoe-shaped fault, and closed barely fifteen years later.	Northumberland	Sunk 1935; opened 1936–1 June 1951	Coal
Gloucester Furnace, Lamberhurst The largest Wealden ironworks of its kind, whose furnace cast the great iron railings and gates around St Paul's Cathedral churchyard in 1710.	Kent	furnace on the site first mentioned 1548; rebuilt 1695–still standing 1787; no exact closure date recorded	Iron
Glyn Colliery, Tonyrefail Grew to 359 men by 1901 working the No.2 and No.3 Rhondda seams, before abandonment in 1903.	Rhondda Cynon Taf	1878–1903	Coal
Glyn Merthyr Colliery In this part of the Vale of Neath the valley floor was too disturbed for a deep pit, so every colliery, Glyn Merthyr among them, was driven as a slant into the hillside outcrop.	Neath Port Talbot	Unknown; reopened 1913–No reliable closure date has yet been located.	Coal
Glyn Neath Colliery A 24-year-old screens worker, M.S. George, was killed after becoming entangled in machinery here in August 1927.	Neath Port Talbot	By 1923–No reliable closure date has yet been located.	Coal
Glyn Pits, Pontypool A Pontypool hillside colliery whose 1845 beam engine and flat-rope vertical winding engine still stand in their engine houses.	Torfaen	Early 1840s (Balance Pit 1830s)–1932 (coal); pumping until 1949 or later	Coal
Glyncastle Colliery Its owners sank shafts because their levels found only soft coal, then found the deeper seams soft too, and a thick clod above the next one fouled every ton.	Neath Port Talbot	Levels from 1837; shafts sunk from 1879–3 April 1965	Coal
Glyncorrwg Colliery The Afan valley pit where a 1954 explosion caused by aluminium striking rusty steel got aluminium banned from British coalfaces.	Neath Port Talbot	1904 (pits); levels by 1860s–1970	Coal
Glynea Colliery A gassy Llanelli-district pit of thirteen explosions, where a blown-out shot killed eight men days after Senghenydd.	Carmarthenshire	1861-63–1926	Coal
Glynmoch Colliery A Victorian level abandoned in 1883 that was pumped out and reopened as Ystrad in 1949, and kept working through eight changes of owner until 2000.	Carmarthenshire	By 1853; reopened 1901 and 1949–31 May 2000	Coal
Glynrhonwy Quarry A disused slate quarry pressed into service as a Second World War bomb store, whose structure catastrophically collapsed under 14,000 tons of ordnance in January 1942 -- some 14% of the RAF's entire bomb stock at the time -- yet, remarkably, killed no one.	Gwynedd	early 1700s (Lower Glynrhonwy); 1861 (Upper Glynrhonwy)–Slate working at both quarries ended on 25 January 1930.	Slate
Goatfoot Colliery A Galston pit of 1863 to 1920 on the Kilmarnock road, one of the fifteen that ringed the town, now under the Barrwood Gate houses.	East Ayrshire	1863–1920	Coal
Goathland Whinstone Mine The workforce moved underground as the years passed: thirteen of thirty-seven below ground in 1894, twenty of twenty-four by 1905.	North Yorkshire	In the returns from 1894–1930	Whinstone
Goitre Colliery Also called Old or Hen Goitre, owned by the Graigola Merthyr Company, abandoning the Hughes seam in 1925.	Neath Port Talbot	By 1910–1925	Coal
Golborne Colliery Site of the 18 March 1979 firedamp explosion that killed ten miners, with only one man — a 20-year-old apprentice — surviving among those caught in the blast.	Greater Manchester	sunk 1880; operations from 1883–1989	Coal
Golconda Mine A Via Gellia barytes and fluorspar mine near Hopton.	Derbyshire	worked from at least the 18th century; possibly earlier–1953 (reported); 1985 (BGS plan)	Lead, Barite, Fluorspar
Golden Dagger Mine The Bronze Age dagger that gave the mine its name links Golden Dagger's own 19th-century industry back to prospectors working the same tin-rich ground roughly four thousand years earlier.	Devon	worked from 1879–November 1930 (last commercially worked mine on Dartmoor)	Tin
Goldsborough Ironstone Mine The last gasp of Cleveland ironstone on this coast: five years, seven people, and then abandoned.	North Yorkshire	About 1910–Abandoned 1915	Ironstone
Goldscope Mine A stream was diverted clean through the mountain to turn a waterwheel hidden underground — one of the more audacious engineering solutions 16th-century German miners brought to Cumbria.	Cumbria	1564–late 19th century	Copper, Lead, Silver, Gold
Goldthorpe Colliery Coal was worked here in 1678, given up in 1783, and started again in 1909 — three beginnings on one piece of ground.	South Yorkshire	1909–1994	Coal
Gonamena A modest 19th-century copper and tin mine overshadowed by its far richer neighbour, South Caradon, once one of the world's largest copper mines.	Cornwall	1844–1886 (final re-trial)	Copper, Tin
Good Luck Mine Named for the ore its finders hoped to strike rich — and never did; its real luck was surviving, almost untouched, under the rubble of its own 1950s demolition	Derbyshire	Adit begun 25 October 1830–1952	Lead, Barite, Fluorspar
Goonvean Pit Its Grade II* listed engine house holds a beam engine built in the 1860s by Harveys of Hayle and moved here from a mine near St Agnes in 1910 -- one of only six surviving Cornish beam engines, and carrying a 1928 replacement beam reputedly the last ever cast.	Cornwall	By 1932–No reliable closure date has yet been located.	China Clay
Gorseddau Quarry Because it failed so quickly, Gorseddau was never modernised or overbuilt by later working -- its original 1850s layout survives today as a rare, undisturbed snapshot of a mid-Victorian slate quarry.	Gwynedd	1854–c.1867	Slate
Gorseydale Lead Mines Hangworm Mine here was used by 18th-century geologists John Whitehurst and James Pilkington as physical evidence for their competing theories on how the earth's mineral veins had formed.	Derbyshire	Working by at least 1745–No reliable closure date has yet been located.	Lead
Gorsgoch Colliery Its owners pumped their floodwater into their neighbour's old workings until the courts made them stop.	Carmarthenshire	Early 1800s–1885	Coal
Gospel Oak Colliery Nine thick-coal pits on the Tipton ridge under Grazebrook and Aston, 1860 to 1910, where a candle near the shaft bottom killed two men in 1860 and an overwind two more in 1872.	West Midlands	c. 1858–1860–1910	Coal, Ironstone
Govan Colliery The pit whose winding engine threw sparks over the miners’ rows by night, so that the village they lived in was called Fireworks Village.	Glasgow	By the 18th century–19th century	Coal
Graig Colliery, Pentrebach Pwll y Graig, sunk for the Plymouth ironworks about 1810, where gas killed seven in 1846, including boys of ten and twelve.	Merthyr Tydfil	c. 1810–c. 1940	Coal
Graig Ddu Quarry A Blaenau Ffestiniog-area slate quarry famous for its home-built 'wild cars', unique among the district's quarries, that let workers ride the inclines down at the end of a shift — a practice that also caused a string of fatal accidents before being stopped in 1939.	Gwynedd	c.1800 (as Manod Quarry); redeveloped as Graig Ddu from the 1840s–Closed 1946	Slate
Graig y Fforest No.2 Colliery (Pinetrees) Gin Pit's associate colliery 500 metres to the north on the same Red Vein level, and a separate Dyffryn Level nearby.	Neath Port Talbot	By the 1970s–1993 (joined underground to Elwyn Colliery c.1991)	Coal
Graigola Colliery One of only three south Wales collieries on the Navy's approved coal list by 1837, dating back to a 1791 lease by Richard Parsons.	Neath Port Talbot	1791–No reliable closure date has yet been located.	Coal
Granville Colliery A Swadlincote colliery worked for over 160 years, from an 1823 sinking to underground connection with Rawdon Colliery in 1990, its sites now a dry ski slope and an industrial estate.	Derbyshire	1823–1967 (surface); 1990 (underground, via Rawdon Colliery)	Coal
Grassington Moor Mines A 2.5 sq km lead-mining landscape in the Yorkshire Dales, with a 1.7km smelt-mill flue	North Yorkshire	16th century–1880	Lead, Barite, Fluorspar
Grassmoor Colliery The Barnes collieries, whose coke-oven gas lit Chesterfield and whose No. 8 pit killed fourteen men in the explosion of 1933.	Derbyshire	1846 (Blackshale from 1861)–August 1950 (winding)	Coal
Gratton Dale Lead Mines Roman brooches turned up in its surface workings in the mid-19th century, one of them now held in the British Museum's Lucas Collection.	Derbyshire	Documented from 1641; possible Roman origin–No reliable closure date has yet been located.	Lead
Gravel Hill Mine Where the Great Perran Iron Lode reaches the sea: a cliff iron mine of the 1720s to 1880s, and type locality of the rare mineral ferroberaunite.	Cornwall	By 1728 (c. 1840 by one account)–1882	Iron, Zinc
Grays Thurrock Chalk Pit Large-scale chalk quarrying here fed one of Europe's largest 19th-century cement industries before the exhausted pits became a nature reserve.	Essex	Worked from the late 18th century; 25ha excavated by 1860–Early 1920s (shortly after the First World War)	Chalk
Great Boys Colliery Named after the farm field it was sunk in — a field description from a century earlier survives, but the colliery itself is remembered today mainly for the 1877 disaster that killed eight of its own men.	Greater Manchester	By 1855–Before 1885	Coal
Great Carnon Stream Works Cornwall's most important tin-streaming operation, working a tidal creek bed dammed back to expose gravel rich in tin and alluvial gold.	Cornwall	intensively worked 1797-1812–1812 (dam breached by gale and high tide)	Tin, Gold
Great County Adit Still draining Cornwall's abandoned tin and copper mines more than two centuries after it was dug, decades after every mine it served has closed.	Cornwall	1748–Still active	—
Great Crinnis Mine Dismissed as 'not worth a pipe of tobacco', the abandoned workings made Joshua Rowe's fortune when he struck rich copper ore only ten fathoms down in 1811.	Cornwall	By 1809–c. 1881	Copper, Lead, Silver
Great Dowgas Mine Worked five parallel south-east-trending lodes near St Stephen-in-Brannel from about 1719 to 1913; briefly traded jointly with part of neighbouring St Austell Consols in 1873 as ‘St Stephen Tin and Copper Mines’, and finished its life amalgamated with Ventonwyn Mine. A contemporary in 1865 called it ‘always a poor mine’.	Cornwall	c. 1719–1913	Tin, Copper, Cobalt, Nickel
Great Laxey Mine Home of the Laxey Wheel, among the largest working waterwheels anywhere	Isle of Man	1780s–1929	Lead, Copper, Silver, Zinc
Great Orme Copper Mines The largest prehistoric copper mine yet discovered anywhere in the world	Conwy	c. 1700 BC–c. 600 BC (prehistoric phase); reworked 17th-19th centuries	Copper, Lead
Great Red Soil Mine The vein this mine is named for gave its name, in turn, to one of Derbyshire lead mining's darker episodes -- three men suffocated in 1833 in a dispute over exactly this ground.	Derbyshire	1831–19th century	Lead
Great Rock Mine Sold its ore for the shine, not the iron — the flakes went into the paint on the Sydney Harbour Bridge	Devon	c. 1822–1969	Micaceous Haematite, Iron
Great Sleddale Mine Unusually for Swaledale, worked for copper rather than lead -- a shallow 1908 trial at Long Scar, in a dale otherwise dominated by the lead workings of the Old Gang and Gunnerside groups.	North Yorkshire	c. 1908–No reliable closure date has yet been located.	Copper
Great Western Colliery Its 1875 Hetty winding engine still turns — the only large steam engine in Wales in working order, and the oldest two-cylinder horizontal winder in the UK on its original site.	Rhondda Cynon Taf	August 1851–November 1983	Coal
Great Wheal Charlotte A copper and tin mine between St Agnes and Porthtowan, Cornwall, worked before 1820 to 1840.	Cornwall	By 1820–c. 1840 (reduced working to c. 1863)	Copper, Tin
Great Work Mine Long-lived tin and copper mine near Godolphin and Tregonning Hill, worked intermittently across four centuries with Grade II-listed engine house remains surviving on site.	Cornwall	By 1538–1939	Tin, Copper, Lead
Great Wyrley Colliery The Great Wyrley Colliery Company's Cannock Chase pits of 1872 to 1925, whose worked-out shafts closed a canal branch, and whose museum page quietly runs on into Harrison's No. 3.	Staffordshire	Working by 1872 (1806 per museum)–1925	Coal, Ironstone
Grebe Swallet Mine Rediscovered only after the 1968 Mendip floods tore open its entrance, the mine preserves a uniquely intimate trace of its last working miners: on Tuesday 20 November 1753, an eight-year-old boy named Henry Young and his younger companion John Clark left their names, finger-marks and practice handwriting in the soft mud deep underground -- almost certainly while accompanying their miner fathers -- and the marks survived undisturbed for over two centuries.	Somerset	Roman–No reliable closure date has yet been located.	Lead
Greenburn Mine Greenburn owes its survival today to an unlikely benefactor: the land passed into National Trust care in 1930 as a bequest from Beatrix Heelis — Beatrix Potter — better remembered for Peter Rabbit than for saving a Lake District copper mine.	Cumbria	worked from late 17th century; intensive from c. 1845–c. 1885 (main working); ceased entirely by 1940	Copper
Greenhead Gill Mine An Elizabethan lead mine run by German miners, whose 1586 inventory lists twelve stamps, eleven buddles and a 'rowle wagon' for work underground.	Cumbria	c. 1564–1573	Lead
Greenhow Mines Two abbeys agreed in 1226 that whoever broke their mining truce must walk to the other house to apologise and live on bread and water every Friday for a year.	North Yorkshire	Roman; monastic working from the 12th century–c. 1900 (lead); fluorspar into the 1930s	Lead, Fluorspar
Greenlaws Mine Despite hosting spectacular purple and yellow fluorite specimens where its east vein cuts the Great Limestone, Greenlaws never became a commercial fluorspar producer -- a 1940s attempt to reopen it for exactly that purpose failed, and it took a team of enthusiast cavers seven years, starting in the 2010s, to dig back down to the first of the abandoned flats and begin recovering those specimens for collectors instead.	County Durham	c. 1700 (workings recorded from 1725)–Late 1880s	Lead
Greenrigg Colliery United Collieries' deep pit of 1905 between Harthill and Fauldhouse, rebuilt after a pithead fire in the 1920s and worked by six hundred people until 1960.	West Lothian	Sunk 1905–1960	Coal, Fireclay, Ironstone
Greenrigg Pit Abandoned for more than 170 years and still readable in the grass: the shaft, the bing, and the footings and garden walls of the row that housed the men who sank it.	West Lothian	Sunk 1806–Abandoned by 1856; the row by the 1870s	Coal
Greenside Mine Major Lake District lead producer with extensive surface remains	Cumbria	1825–1962	Lead, Silver
Greetwell Ironstone Mines Five million tons of ore from the edge of Lincoln, two thirds of it mined underground by pillar and stall, hauled by horses to the very end.	Lincolnshire	c. 1873, certainly by 1879–1939 (ironstone); quarrying to 2003	Ironstone, Limestone
Gresford Colliery Gresford Colliery reopened and worked for almost forty years after entombing 261 of its own men underground — the sealed Dennis section remaining an active part of the mine's below-ground geography for the rest of its working life, worked around rather than reopened.	Wrexham	1908 (sinking); 1911 (production)–1973	Coal
Griff Colliery Part of the Arbury estate whose land agent was novelist George Eliot's father, close to her childhood home at Griff House.	Warwickshire	Pits recorded from as early as 1716; Barbara Shaft sunk before 1831–1960 (No.4 pit, the last working shaft); colliery railway closed 1961	Coal
Grime's Graves A Neolithic flint mine over 4000 years old; miners' antler picks and even a fingerprint survive in its shafts	Norfolk	c. 2600 BC–c. 2400 BC or c. 2100 BC	Flint
Grimethorpe Colliery A South Yorkshire colliery whose profitable 1993 closure left its town named Britain's most deprived, an experience that inspired the film Brassed Off.	South Yorkshire	Sunk from 1894; coal worked from 1897–May 1993	Coal
Grinkle Mine A Cleveland ironstone mine whose ore was hauled by narrow-gauge tramway through two tunnels to a purpose-built harbour at Port Mulgrave, built specifically to supply a Tyneside ironworks.	North Yorkshire	1875–1930 (site abandoned 1934)	Iron
Grinshill Quarry Nine hundred years of quarrying on one Shropshire hill, and the stone around the front door of Number 10 Downing Street.	Shropshire	By the 12th century–Still active	Sandstone
Grinton Smelt Mill The best-preserved lead smelt mill in the Yorkshire Dales, with its three-hearth furnace house, peat store and a flue climbing 300 metres up the hill.	North Yorkshire	c. 1727 (first mill); rebuilt 1820-22–1886-95 (sources differ)	Lead
Groby Granite Quarry Its granite paved Victorian London, carried on a railway the Stephensons advised on and finished before the Leicester and Swannington itself opened.	Leicestershire	By 1832–No reliable closure date has yet been located.	Granite
Grogwynion Mine Grogwynion was already an old mine by 1744, one of only a handful still working in Ceredigion that year — and low galleries cut by hand with gads, found within the workings, hint at activity older still than any documentary record of the site.	Ceredigion	worked by 1744 (probably earlier)–1889	Lead
Grosmont Ironstone Mines North Yorkshire ironstone mines discovered during construction of George Stephenson's Whitby and Pickering Railway, feeding a village ironworks that once ran three blast furnaces.	North Yorkshire	ore first raised 1836; mines proper from 1839–1891/92	Iron
Grove Colliery A single explosion in 1930 ended the colliery's own coal-getting for good — though its washery kept working someone else's coal for twenty years afterward.	Staffordshire	1852–1952 (coal winding ended 1930)	Coal
Grove Colliery, Kilgetty Its shaft was described in 1859 as the largest in Wales, sunk to a vein that turned out to be very disappointing; the engine house is a magnificent ruin.	Pembrokeshire	1856–1884	Anthracite
Groverake Mine A mine that changed what it was digging for three times over — iron, then lead, then fluorspar — before finally being the last of its kind left standing.	County Durham	Ironstone from 1819; lead and later fluorspar into the 20th century–1999	Fluorspar, Lead, Iron
Gunnislake Clitters Mine A Tamar valley mine that went from copper to tin to arsenic as each ran out, and whose engine houses and arsenic labyrinths still stand in the woods above the river.	Cornwall	c. 1820–1919 (working ceased); the sett passed to the Duchy of Cornwall	Copper, Tin, Arsenic, Tungsten
Gurney Slade Quarry The face shows Jurassic rocks lying flat across the sawn-off edges of limestone tilted long before them.	Somerset	Mid 19th century–Still worked	Limestone
Gurnos Colliery Its first slant was an older mine's, Wernplemis, abandoned a generation before, and after it closed in 1928 it was kept on for sixteen years just to pump water.	Powys	About 1900 (Wernplemis before 1858)–1928 (pumping to 1944)	Coal
Guy Mine One of the Alport Mining Company's five hydraulic pumping engines; its shaft ran in on the night of its own 1852 auction sale.	Derbyshire	Engine estimates received 1841–Both engines sold at auction 1852; shaft ran in the same year	Lead
Gwaith Yr Afon Mine One of a cluster of satellite workings around the much larger Cwmsymlog (East Darren) silver-lead mine, developing minor veins on the same Darren-Cwmsymlog fault system.	Ceredigion	1853–1878 (worked intermittently)	Lead
Gwaun Cae Gurwen Colliery The Amman valley anthracite pits whose miners fought the Coal Board through 238 unofficial stoppages in nine years.	Neath Port Talbot	1837–1962 (East Pit)	Coal
Gwaunclawdd Colliery Its first recorded plans are dated 1818, and in its slant a single section showed the Big Vein over ten feet thick with six other seams between the outcrop and 464 feet.	Powys	Worked by 1818 (plans); slant by 1865–Seams abandoned 1927; closed 1938	Coal
Gwendraeth Colliery Daniel Watney's anthracite pit at Pontyberem, where 26 of the 27 men and boys on the night shift drowned in 1852 and the bodies took 18 months to recover.	Carmarthenshire	By 1852, possibly earlier–1870s	Coal
Gwersyllt Colliery A pit so tied to its neighbour that one census of mines could not count it separately.	Wrexham	Mining from the mid 1840s–1925	Coal
Gwyn's Colliery A Pontardawe level that passed from the South Wales Primrose Coal Company to the Tareni Colliery Company in 1928.	Neath Port Talbot	1902–By 1928	Coal
Gwynfynydd Gold Mine The second-largest gold producer in the Dolgellau gold belt after Clogau; supplied the ingot presented to the Queen on her 60th birthday	Gwynedd	1863 (discovery); 1887 (commercial development)–1998	Gold