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| A-Z ListingsList of MinesThe following is an alphabetical list of mines in County Durham, from c.1850 to c.1990. Please click on a mine name below for further information or click on an initial letter to jump to mines in that section. For assistance with the 'A-Z Listings' please see our online help pages.
Starting with O - 39 mines. | Oak Bark Colliery Oak Tree Oakenshaw Colliery, Stockley Oakwellgate Colliery Old Black Boy Colliery, Coundon Grange Old Carterthorne Colliery, Barony Old Copley Colliery Old Copley Smout Old Durham Colliery, Elvet Old Durham Shincliffe Old Eldon Colliery, Eldon Old Eldon Drift Old Etherley Colliery Old Etherley Colliery (George Pit), Escomb Old Etherley Colliery (Jane Pit), Witton-le-Wear Old Etherley Colliery (Phoenix Pit) Old Etherley Rush Old Gordon Old Lonsdale Old Louisa Old Medomsley Old North End Old Roddymoor Colliery Old Sherburn Old Shield Pit Old South Moor Colliery Old Thornley Old Upper Heworth Colliery, Heworth Old Water Level Old White Lea , Crook & Billy Row Osmondcroft Osmondcroft & Whorley Hill Oswald Pit Ouston Colliery B Pit Ouston Colliery (A Pit), Harraton Ouston Colliery (E Pit), Ouston Ouston Winning Oxclose Colliery, Washington Oxhill Pit, Kyo
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